CN203995221U - Easy writing whiteboard pen - Google Patents
Easy writing whiteboard pen Download PDFInfo
- Publication number
- CN203995221U CN203995221U CN201420351496.2U CN201420351496U CN203995221U CN 203995221 U CN203995221 U CN 203995221U CN 201420351496 U CN201420351496 U CN 201420351496U CN 203995221 U CN203995221 U CN 203995221U
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- China
- Prior art keywords
- ink
- piston
- cap
- brush
- pen core
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 238000003860 storage Methods 0.000 claims abstract description 27
- 238000003825 pressing Methods 0.000 claims description 54
- 239000011324 bead Substances 0.000 claims description 29
- 238000007789 sealing Methods 0.000 claims description 17
- 230000000694 effects Effects 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 9
- 239000012780 transparent material Substances 0.000 claims description 3
- 239000000976 ink Substances 0.000 abstract description 94
- 239000003550 marker Substances 0.000 abstract description 10
- 230000015572 biosynthetic process Effects 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000036651 mood Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Pens And Brushes (AREA)
Abstract
Easily writing whiteboard pen, is mainly comprised of penholder, the cap for brush, pen core and ink, described penholder hollow, and ink is stored in penholder endoporus, and one end of a body dwindles formation nib, and the other end is connected with the cap for brush.By piston, to ink storage chamber, supply ink, improve ink supply situation, reduce disconnected black phenomenon, make to write more smooth; Can repeatedly add China ink, extend the service life of white board marker.
Description
Technical field
The utility model relates to a kind of white board marker for writing on blank, belongs to the optimisation technique of white board marker.
Background technology
White board marker is the larger apparatus of indispensable use amount in teaching, the office appliance that Ye Shi office is conventional, existing white board marker, the main blotting fiber storage ink that adopts in structure, this mode mainly has the following disadvantages: the one, ink storage finite capacity, the 2nd, ink supply efficiency is low, in continuous writing process, often there is disconnected China ink, write slack phenomenon, the 3rd, can not add China ink, because, when not using no China ink, nib will be dried and occur disconnected black phenomenon, then adds its ink absorption ability of China ink and be also difficult to recover.So need to slightly stop the China ink supplies such as a moment during routine use comes up to continue to use, for verifying China ink, whether supply up, a lot of users also can be with pen line carelessly on blank, continue again to use the thinking not only affect operating efficiency and user Deng can mark continuous clear distinct lines, also can affect user's mood.
Therefore, need to find and a kind ofly write more smooth and can add the white board marker of ink.
Utility model content
The purpose of this utility model is to provide a kind ofly writes more smooth and can add the white board marker of ink.
The technical solution of the utility model is: easy writing whiteboard pen, mainly by penholder 1, the cap for brush 2, pen core 3 and ink, formed, described penholder hollow, ink is stored in penholder endoporus, one end of body dwindles and forms nib 4, and the other end is connected with the cap for brush, and the described cap for brush and penholder are threaded connection, back out in backward body of the cap for brush and add ink, described easy writing whiteboard pen also comprises ink-feeding tube 5, is placed in the inking device and piston 6 in the cap for brush; Axis along nib 4 is provided with pen core fixing hole, and pen core is fixed from inserting pen core fixing hole outside to inside; Pen core fixing hole forms pen core fixed leg 41 to the direction projection of the cap for brush, described pen core fixed leg forms pen core stop bit bead 42 towards the edge of cap for brush one end to inner process, the diameter of bore of pen core stop bit bead is less than the diameter of pen core, pen core can not be moved up and stop up the port of export of ink-feeding tube; The end face of ink-feeding tube 5 towards nib one end outwards expands and forms ink storage chamber 51, ink storage chamber 51 is connected in pen core fixed leg on the end face of cap for brush one end or in pen core stop bit bead away from the edge of ink-feeding tube 5, makes the ink in penholder can only enter from ink storage chamber the endoporus of pen core fixed leg; The end face of ink-feeding tube 5 towards cap for brush one end outwards expands the piston cylinder 52 that forms columnar hollow, at penholder 1, near the inwall of the cap for brush, be provided with the bracing frame 11 with centre bore, the piston cylinder 52 of ink-feeding tube is positioned at the centre bore of bracing frame 11, the wall of piston cylinder is provided with ink-feeding hole 521, and ink-feeding hole is connected with the endoporus of penholder; In the cap for brush 2, be also provided with fixed head 21, be provided with the piston fixed leg 22 to cap for brush top boss on fixed head 21, be provided with the demarcation strip parallel with fixed head 21 in piston fixed leg, demarcation strip is provided with piston fixing hole; On the top of the cap for brush, be provided with pressing key 7, described pressing key can move forward and backward by the endoporus along the cap for brush under the effect of external force; Piston 6 enters piston cylinder from cap for brush one end, forms and closely cooperates with piston cylinder inwall; Piston rod 61 passes the piston fixing hole demarcation strip from body one end, then through spring 8, end is fixed on pressing key 7 inwalls; Described spring 8 one end push against the inwall of pressing key, and the other end enters piston fixed leg 22 and pushes against demarcation strip; While not pressing pressing key 7, piston 6 moves up and enters piston fixed leg 22 in the endoporus of nib under the tension force effect of spring 8.
Towards the edge of pressing key, the direction projection to pressing key forms sealing column 23 to piston fixing hole, between piston rod 61 and piston fixing hole inwall and piston rod and the inwall of sealing column, be provided with the profile of tooth sealing ring 9 of multilayer parallel tooth, from the cap for brush, the direction to ink-feeding tube tilts the tooth of profile of tooth sealing ring.
In sealing column 23, be provided with the locking cap 24 being threaded connection with it.
Described ink-feeding hole 521 is arranged on the wall near the piston cylinder that is positioned at a body 52 of fixed head 21.
Described fixed head 21 is more than or equal to the height of piston towards wall and the demarcation strip of nib one end towards the distance of the wall of nib one end.
The diameter of bore of described ink-feeding tube is less than the aperture in the He Chongmo chamber, aperture of piston cylinder.
Outer wall at piston cylinder is provided with the fixedly bead to outer process, for fixing support rack; Piston cylinder is positioned on the center line of penholder endoporus, so that assembling time makes piston enter piston cylinder.
At pressing key, on the wall of fixed head, be provided with the spring location bead to fixed head direction projection, one end of spring is placed in the bead of spring location; At pressing key, towards the wall of fixed head, be provided with fixedly bead of piston rod, described piston rod is bead axle centered by the central shaft of pressing key fixedly, and the end of piston rod is fixed on piston rod fixedly in bead.
While needing ink supply, make nib or tilt down down, press after pressing key, spring 8 is squeezed to the Direction distortion of nib, pressing key 7 moves to nib in piston cylinder to the direction promotion piston 6 of nib, ink in piston cylinder is clamp-oned to ink-feeding tube 5, make ink arrive ink storage chamber 51 and pen core fixed leg endoporus, the pen core 3 that is arranged in pen core fixed leg endoporus just can be drawn onto ink, the ink supply of realization to pen core 3, at this moment, in penholder, form negative pressure, extraneous air enters in the cap for brush by the space between pressing key and the cap for brush, by the space between piston rod and demarcation strip, enter piston cylinder again, and then enter a body by ink-feeding hole, air pressure is tended to balance, decontrol pressing key, under the tension force effect of spring, pressing key and piston reset to the top of the cap for brush, in piston cylinder between piston and ink-feeding tube, form negative pressure, part air in body can enter in the piston cylinder between piston and ink-feeding tube by ink-feeding hole automatically, negative pressure is reduced, when piston is between ink-feeding hole and pressing key, as long as by nib upward, the ink in penholder will flow in piston cylinder by ink-feeding hole, for ink supply next time ready.
Body adopts transparent material to make.
Beneficial effect
1, by piston, to ink storage chamber, supply ink, improve ink supply situation, reduce disconnected black phenomenon, make to write more smooth;
2, can repeatedly add China ink, extend the service life of white board marker.
Accompanying drawing explanation
Fig. 1 is schematic appearance of the present utility model;
Fig. 2 is profile of the present utility model;
Fig. 3 is the partial enlarged drawing on Fig. 2 top;
Fig. 4 is the partial enlarged drawing of Fig. 2 bottom;
Fig. 5 is the figure of popping of the present utility model;
Fig. 6 is the partial enlarged drawing of Fig. 5;
Fig. 7 is the generalized section of cap for brush part of the present utility model.
The specific embodiment
As depicted in figs. 1 and 2, easily writing whiteboard pen, is mainly comprised of penholder 1, the cap for brush 2, pen core 3 and ink, described penholder hollow, and ink is stored in penholder endoporus, and one end of a body dwindles and forms nib 4, and the other end is connected with the cap for brush.The described cap for brush and penholder are threaded connection, and back out interpolation ink in backward body of the cap for brush.Because penholder is transparent, user can see the storage of penholder ink inside, when the ink in penholder can not flow into piston cylinder swimmingly, will back out the cap for brush and add ink in penholder.
As shown in Figure 2 and Figure 5, described easy writing whiteboard pen also comprises ink-feeding tube 5, is placed in the inking device and piston 6 in the cap for brush.
As shown in Figure 4, along the axis of nib 4, be provided with pen core fixing hole, pen core is fixed from inserting pen core fixing hole outside to inside; Pen core fixing hole forms pen core fixed leg 41 to the direction projection of the cap for brush, described pen core fixed leg forms pen core stop bit bead 42 towards the edge of cap for brush one end to inner process, the diameter of bore of pen core stop bit bead is less than the diameter of pen core, pen core can not be moved up and stop up the port of export of ink-feeding tube; The end face of ink-feeding tube 5 towards nib one end outwards expands and forms ink storage chamber 51, ink storage chamber 51 is connected in pen core fixed leg on the end face of cap for brush one end or in pen core stop bit bead away from the edge of ink-feeding tube 5, makes the ink in penholder can only enter from ink storage chamber the endoporus of pen core fixed leg.When ink enters ink storage chamber 51 by ink-feeding tube, as long as nib down, ink will flow to pen core fixed leg endoporus, soaks pen core.Because pen core normally adopts the material of easy water suction, make, ink can automatically spread to arrive along pen core and be positioned at the pen core top outside nib, thereby can write.Between ink storage chamber and pen core fixed leg or pen core stop bit bead, adopt the mode being fixedly connected with, ink can not be flowed back in a body from gap between the two, to guarantee that pen core can access sufficient ink feed.
As shown in Figure 3, the end face of ink-feeding tube 5 towards cap for brush one end outwards expands the piston cylinder 52 that forms columnar hollow, at penholder 1, near the inwall of the cap for brush, be provided with the bracing frame 11 with centre bore, the piston cylinder 52 of ink-feeding tube is positioned at the centre bore of bracing frame 11, the wall of piston cylinder is provided with ink-feeding hole 521, and ink-feeding hole is connected with the endoporus of penholder; In the cap for brush 2, be also provided with fixed head 21, be provided with the piston fixed leg 22 to cap for brush top boss on fixed head 21, be provided with the demarcation strip parallel with fixed head 21 in piston fixed leg, demarcation strip is provided with piston fixing hole.
On the top of the cap for brush, be provided with pressing key 7, described pressing key can move forward and backward by the endoporus along the cap for brush under the effect of external force; Piston 6 enters piston cylinder from cap for brush one end, forms and closely cooperates with piston cylinder inwall; Piston rod 61 passes the piston fixing hole demarcation strip from body one end, then through spring 8, end is fixed on pressing key 7 inwalls; Described spring 8 one end push against the inwall of pressing key, and the other end enters piston fixed leg 22 and pushes against demarcation strip; While not pressing pressing key 7, piston 6 moves up and enters piston fixed leg 22 in the endoporus of nib under the tension force effect of spring 8.
When piston is between ink-feeding hole and pressing key, as long as by nib upward, the ink in penholder will flow in piston cylinder by ink-feeding hole, for ink supply next time ready.
As shown in Figure 6 and Figure 7, towards the edge of pressing key, the direction projection to pressing key forms sealing column 23 to piston fixing hole, between piston rod 61 and piston fixing hole inwall and piston rod and the inwall of sealing column, be provided with the profile of tooth sealing ring 9 of multilayer parallel tooth, from the cap for brush, the direction to ink-feeding tube tilts the tooth of profile of tooth sealing ring.In the process of piston reset, if have ink between piston and demarcation strip, can flow back in a body by ink-feeding hole, or flow in the piston cylinder between piston and ink-feeding tube by the space between piston and piston cylinder, owing to being provided with profile of tooth sealing ring 9, make ink can not flow to through the space of piston rod and demarcation strip the interior people of the cap for brush of demarcation strip top, measure extraneous air and can fall tooth punching shape sealing ring 9 and enter in piston cylinder.
In sealing column 23, be provided with the locking cap 24 being threaded connection with it.
Described ink-feeding hole 521 is arranged on the wall near the piston cylinder that is positioned at a body 52 of fixed head 21.
Described fixed head 21 is more than or equal to the height of piston towards wall and the demarcation strip of nib one end towards the distance of the wall of nib one end.
The diameter of bore of described ink-feeding tube is less than the aperture in the He Chongmo chamber, aperture of piston cylinder.While forming negative pressure in piston cylinder, part ink in ink-feeding tube can flow backwards and get back in piston cylinder, due to ink-feeding tube more carefully and longer, the resorption power that the ink that negative pressure in piston cylinder is adjusted the distance in piston cylinder ink-feeding tube far away forms will reduce, and, because the sectional area of ink storage chamber is greater than the sectional area of ink-feeding tube, the ink of ink storage chamber is difficult for being drawn back in piston cylinder.Because pen core has higher density and good solid water, the possibility that the ink in pen core is returned in piston cylinder by suck-back due to the negative pressure in piston cylinder is very low.Only, under the promotion of piston, just can make ink be squeezed into ink storage chamber from piston cylinder, conversely, during piston reset, the ink in Chu Sai chamber is difficult to get back to piston cylinder by ink-feeding tube.In the situation that piston is motionless, a comparatively stable poised state of the inner formation of white board marker, ink in piston cylinder is also difficult to flow to ink storage chamber by ink-feeding tube, thereby ink storage chamber can be pen core supply ink constantly, only have in ink storage chamber and there is no ink, just need to press pressing key, by piston, ink be shifted onto to ink storage chamber from plunger shaft, realize ink supply.
While needing ink supply, first allow nib upward, make the ink in a body enter piston cylinder by ink-feeding hole, make again nib or tilt down down, press after pressing key, spring 8 is squeezed to the Direction distortion of nib, pressing key 7 moves to nib in piston cylinder to the direction promotion piston 6 of nib, ink in piston cylinder is clamp-oned to ink-feeding tube 5, make ink arrive ink storage chamber 51 and pen core fixed leg endoporus, the pen core 3 that is arranged in pen core fixed leg endoporus just can be drawn onto ink, the ink supply of realization to pen core 3, at this moment, in penholder, form negative pressure, extraneous air enters in the cap for brush by the space between pressing key and the cap for brush, by the space between piston rod and demarcation strip, enter piston cylinder again, and then enter a body by ink-feeding hole, air pressure is tended to balance, decontrol pressing key, under the tension force effect of spring, pressing key and piston reset to the top of the cap for brush, in piston cylinder between piston and ink-feeding tube, form negative pressure, part air in body can enter in the piston cylinder between piston and ink-feeding tube by ink-feeding hole automatically, negative pressure is reduced.Under reset mode, in the piston cylinder of piston between ink-feeding hole and pressing key, can not stop up ink-feeding hole.
Outer wall at piston cylinder is provided with the fixedly bead to outer process, for fixing support rack; Piston cylinder is positioned on the center line of penholder endoporus, so that assembling time makes piston enter piston cylinder.
As shown in Figure 6, be provided with the spring location bead to fixed head direction projection at pressing key on the wall of fixed head, one end of spring is placed in the bead of spring location; At pressing key, towards the wall of fixed head, be provided with fixedly bead of piston rod, described piston rod is bead axle centered by the central shaft of pressing key fixedly, and the end of piston rod is fixed on piston rod fixedly in bead.During assembling, the direction of piston rod from piston cylinder to pressing key enters piston rod fixedly in bead, and by modes such as welding, both formed a fixed connection.
Body adopts transparent material to make so that observe ink reservoir volume.
When needs are changed the ink of another kind of color, back out pen and ink, by the ink turned letter in penholder, then after wash clean, be charged into new ink, after residual ink is used up completely in ink-feeding tube and pen core, then the word writing out is exactly the ink color of new interpolation.
Adopt easy writing whiteboard pen of the present invention, by piston, to ink storage chamber, supply ink, improve ink supply situation, reduce disconnected black phenomenon, make to write more smooth, and can repeatedly add China ink, the service life of prolongation white board marker.
Above-described embodiment is only for interpretation purposes of the present utility model; and be not to restriction of the present utility model, those skilled in the art, in essential scope of the present utility model; make a variety of changes or substitute, also should belong to protection category of the present utility model.
Claims (10)
1. easy writing whiteboard pen, mainly by penholder (1), the cap for brush (2), pen core (3) and ink, formed, described penholder hollow, ink is stored in penholder endoporus, one end of body dwindles and forms nib (4), the other end is connected with the cap for brush, it is characterized in that: the described cap for brush and penholder are threaded connection, and backs out interpolation ink in backward body of the cap for brush; Described easy writing whiteboard pen also comprises ink-feeding tube (5), is placed in the inking device and piston (6) in the cap for brush; Axis along nib (4) is provided with pen core fixing hole, and pen core is fixed from inserting pen core fixing hole outside to inside; Pen core fixing hole forms pen core fixed leg (41) to the direction projection of the cap for brush, described pen core fixed leg forms pen core stop bit bead (42) towards the edge of cap for brush one end to inner process, the diameter of bore of pen core stop bit bead is less than the diameter of pen core, pen core can not be moved up and stop up the port of export of ink-feeding tube; The end face of ink-feeding tube (5) towards nib one end outwards expands and forms ink storage chamber (51), ink storage chamber (51) is connected in pen core fixed leg on the end face of cap for brush one end or in pen core stop bit bead away from the edge of ink-feeding tube (5), makes the ink in penholder can only enter from ink storage chamber the endoporus of pen core fixed leg; The end face of ink-feeding tube (5) towards cap for brush one end outwards expands the piston cylinder (52) that forms columnar hollow, inwall at the close cap for brush of penholder (1) is provided with the bracing frame (11) with centre bore, the piston cylinder of ink-feeding tube (52) is positioned at the centre bore of bracing frame (11), the wall of piston cylinder is provided with ink-feeding hole (521), and ink-feeding hole is connected with the endoporus of penholder; In the cap for brush (2), be also provided with fixed head (21), on fixed head (21), be provided with the piston fixed leg (22) to cap for brush top boss, in piston fixed leg, be provided with the demarcation strip parallel with fixed head (21), demarcation strip is provided with piston fixing hole; On the top of the cap for brush, be provided with pressing key (7), described pressing key can move forward and backward by the endoporus along the cap for brush under the effect of external force; Piston (6) enters piston cylinder from cap for brush one end, forms and closely cooperates with piston cylinder inwall; Piston rod (61) passes the piston fixing hole demarcation strip from body one end, then through spring (8), end is fixed on pressing key (7) inwall; Described spring (8) one end pushes against the inwall of pressing key, and the other end enters piston fixed leg (22) and pushes against demarcation strip; While not pressing pressing key (7), piston (6) moves up and enters piston fixed leg (22) in the endoporus of nib under the tension force effect of spring (8).
2. easy writing whiteboard pen according to claim 1, it is characterized in that: towards the edge of pressing key, the direction projection to pressing key forms sealing column (23) to piston fixing hole, between piston rod (61) and piston fixing hole inwall and piston rod and the inwall of sealing column, be provided with the profile of tooth sealing ring (9) of multilayer parallel tooth, from the cap for brush, the direction to ink-feeding tube tilts the tooth of profile of tooth sealing ring.
3. easy writing whiteboard pen according to claim 2, is characterized in that: in sealing column (23), be provided with the locking cap (24) being threaded connection with it.
4. easy writing whiteboard pen according to claim 1, is characterized in that: described ink-feeding hole (521) is arranged on the wall near the piston cylinder that is positioned at a body (52) of fixed head (21).
5. easy writing whiteboard pen according to claim 1, is characterized in that: described fixed head (21) is more than or equal to the height of piston towards wall and the demarcation strip of nib one end towards the distance of the wall of nib one end.
6. easy writing whiteboard pen according to claim 1, is characterized in that: the diameter of bore of described ink-feeding tube is less than the aperture in the He Chongmo chamber, aperture of piston cylinder.
7. easy writing whiteboard pen according to claim 1, is characterized in that: the outer wall at piston cylinder is provided with the fixedly bead to outer process, for fixing support rack; Piston cylinder is positioned on the center line of penholder endoporus, so that assembling time makes piston enter piston cylinder.
8. easy writing whiteboard pen according to claim 1, is characterized in that: at pressing key, on the wall of fixed head, be provided with the spring location bead to fixed head direction projection, one end of spring is placed in the bead of spring location; At pressing key, towards the wall of fixed head, be provided with fixedly bead of piston rod, described piston rod is bead axle centered by the central shaft of pressing key fixedly, and the end of piston rod is fixed on piston rod fixedly in bead.
9. easy writing whiteboard pen according to claim 1, it is characterized in that: while needing ink supply, make nib or tilt down down, press after pressing key, spring (8) is squeezed to the Direction distortion of nib, pressing key (7) moves to nib in piston cylinder to the direction promotion piston (6) of nib, ink in piston cylinder is clamp-oned to ink-feeding tube (5), make ink arrive ink storage chamber (51) and pen core fixed leg endoporus, the pen core 3 that is arranged in pen core fixed leg endoporus just can be drawn onto ink, the ink supply of realization to pen core (3), at this moment, in penholder, form negative pressure, extraneous air enters in the cap for brush by the space between pressing key and the cap for brush, by the space between piston rod and demarcation strip, enter piston cylinder again, and then enter a body by ink-feeding hole, air pressure is tended to balance, decontrol pressing key, under the tension force effect of spring, pressing key and piston reset to the top of the cap for brush, in piston cylinder between piston and ink-feeding tube, form negative pressure, part air in body can enter in the piston cylinder between piston and ink-feeding tube by ink-feeding hole automatically, negative pressure is reduced, when piston is between ink-feeding hole and pressing key, as long as by nib upward, the ink in penholder will flow in piston cylinder by ink-feeding hole, for ink supply next time ready.
10. easy writing whiteboard pen according to claim 1, is characterized in that: a body adopts transparent material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420351496.2U CN203995221U (en) | 2014-06-27 | 2014-06-27 | Easy writing whiteboard pen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420351496.2U CN203995221U (en) | 2014-06-27 | 2014-06-27 | Easy writing whiteboard pen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203995221U true CN203995221U (en) | 2014-12-10 |
Family
ID=52035277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420351496.2U Expired - Fee Related CN203995221U (en) | 2014-06-27 | 2014-06-27 | Easy writing whiteboard pen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203995221U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108189586A (en) * | 2018-02-08 | 2018-06-22 | 陕西科技大学 | It is a kind of to facilitate the marker for drawing pigment juice |
-
2014
- 2014-06-27 CN CN201420351496.2U patent/CN203995221U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108189586A (en) * | 2018-02-08 | 2018-06-22 | 陕西科技大学 | It is a kind of to facilitate the marker for drawing pigment juice |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141210 Termination date: 20170627 |
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| CF01 | Termination of patent right due to non-payment of annual fee |