US20090094865A1 - Welted waterproof foot covering - Google Patents
Welted waterproof foot covering Download PDFInfo
- Publication number
- US20090094865A1 US20090094865A1 US11/870,145 US87014507A US2009094865A1 US 20090094865 A1 US20090094865 A1 US 20090094865A1 US 87014507 A US87014507 A US 87014507A US 2009094865 A1 US2009094865 A1 US 2009094865A1
- Authority
- US
- United States
- Prior art keywords
- foot covering
- protrusion
- bottom wall
- welt
- unit
- Prior art date
- 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.)
- Abandoned
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Classifications
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B9/00—Footwear characterised by the assembling of the individual parts
- A43B9/04—Welted footwear
- A43B9/06—Welted footwear stitched or nailed through
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B15/00—Welts for footwear
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B7/00—Footwear with health or hygienic arrangements
- A43B7/12—Special watertight footwear
Definitions
- the invention relates to a foot covering, more particularly to a welted waterproof foot covering.
- a conventional waterproof foot covering 10 as disclosed in U.S. Pat. No. 6,065,227, includes a rubber outsole 11 , a lower enclosing shell 12 made of plastic, and an upper enclosure 13 made of leather or fabric material. A bottom portion of the lower enclosing shell 12 is fixed to the outsole 11 . A bottom end of the upper enclosure 13 is connected to a top periphery of the lower enclosing shell 12 so as to define a foot-receiving chamber 14 .
- the outsole 11 and the lower enclosing shell 12 are made of waterproof materials.
- the outsole 11 has an extension part 111 projecting upwardly from a top periphery thereof so as to extend beyond a junction 15 between the lower enclosing shell 12 and the outsole 11 . As such, water may be further prevented from entering the foot-receiving chamber 14 through the junction 15 .
- it is difficult to make complicated decorative modifications to an outer appearance of the conventional foot covering 10 so that the conventional foot covering 10 looks monotonous and unattractive.
- FIG. 2 another conventional waterproof foot covering 20 is shown to include an outsole 21 , a vamp 22 , and a connecting pad 23 having an L-shaped cross section, which are all made of waterproof materials.
- the outsole 21 has an extension part 211 projecting upwardly from a top periphery thereof and adhered directly to a bottom periphery of the vamp 22 .
- the L-shaped connecting pad 23 is disposed inside the vamp 22 so as to prevent water from entering the foot covering 20 through a crevice 24 between the extension part 211 of the outsole 21 and the bottom periphery of the vamp 22 .
- the L-shaped connecting pad 23 has a bottom side adhered to the outsole 21 , and a lateral side adhered to an inner wall of the bottom periphery of the vamp 22 . However, since the adhesive bonding area between the outsole 21 and the vamp 22 is reduced, the connection therebetween is not strong and durable.
- Still another conventional waterproof foot covering as disclosed in U.S. Pat. No. 6,338,205, includes a plastic web platform molded integrally with a bottom portion of a plastic waterproof shell.
- the web platform is stitched to an outsole, thereby firmly securing the shell and the web platform to the outsole. Since the web platform is formed integrally with the shell, the material of the web platform is limited to be the same as that of the shell such that the color of the conventional foot covering is monotonous, and the aesthetic quality thereof poor.
- the object of the present invention is to provide a waterproof foot covering that is capable of overcoming the aforementioned drawbacks of the prior art.
- a foot covering of this invention comprises a sole unit, a shell unit, and a welt.
- the shell unit has a substantially horizontal bottom wall, a peripheral wall extending upwardly from the bottom wall, and a protrusion extending downwardly from the bottom wall and elongated along the peripheral wall.
- the welt is attached to the sole unit and the shell unit, and has an inner part connected to the protrusion, and an outer part sewn to the sole unit.
- FIG. 1 is a partially sectioned view of a conventional waterproof foot covering disclosed in U.S. Pat. No. 6,065,227;
- FIG. 2 is a fragmentary sectional view of another conventional waterproof foot covering
- FIG. 3 is a partially sectioned view of the first preferred embodiment of a foot covering according to the present invention.
- FIG. 4 is a fragmentary exploded perspective view of a sole unit, a shell unit, and a welt of the first preferred embodiment
- FIG. 5 is a fragmentary assembled sectional view of FIG. 4 ;
- FIG. 6 is a partially sectioned view of the second preferred embodiment of a foot covering according to the present invention.
- FIG. 7 is a fragmentary rear sectional view of the second preferred embodiment.
- the first preferred embodiment of a foot covering according to the present invention is exemplified as a boot 100 , and is shown to comprise a sole unit 30 , a shell unit 40 , an upper 60 , and a welt 50 .
- the sole unit 30 includes an outsole 31 , and a thin pad 32 adhered fixedly to a top face of the outsole 31 .
- the sole unit 30 may have the outsole 31 combined with a midsole (not shown).
- the shell unit 40 defines a foot-receiving chamber 411 , and has a substantially horizontal bottom wall 412 , a peripheral wall 410 extending upwardly from the bottom wall 412 , a protrusion 413 extending downwardly from the bottom wall 412 and elongated along the peripheral wall 410 , a waterproof layer 42 fixed to an inner face of the peripheral wall 410 , and a lining 43 covering the waterproof layer 42 and adapted to contact a wearer's foot.
- the protrusion 413 and the bottom wall 412 cooperatively define a receiving groove 414 for receiving a cushion pad 44 therein.
- the cushion pad 44 is first adhered fixedly to the bottom wall 412 and the protrusion 413 , after which it is adhered fixedly to a top face of the thin pad 32 so as to fix the shell unit 40 to the sole unit 30 .
- the bottom wall 412 has a front portion 401 , and a heel portion 402 connected to the front portion 401 .
- the protrusion 413 forms a loop at the bottom side of the bottom wall 412 along the peripheries of the front and heel portions 401 , 402 .
- An upper 60 is connected to a top portion of the shell unit 40 .
- the welt 50 is disposed between the shell unit 40 and the sole unit 30 , surrounds the loop of the protrusion 413 , and extends along the peripheries of the front and heel portions 401 , 402 .
- the welt 50 is made of plastic, and has a substantially L-shaped cross section.
- the welt 50 has an inner part 514 sewn to the protrusion 413 along a first stitch line 52 , an outer part 511 sewn to the thin pad 32 of the sole unit 30 along a second stitch line 52 ′, an upper rib 512 projecting upwardly from the inner part 514 and adhered to an outer face of the peripheral wall 410 , and an indentation 513 formed between the inner and outer parts 514 , 511 .
- the first stitch line 52 penetrates the inner part 514 from the indentation 513 so as to extend through the protrusion 413 .
- the first stitch line 52 extends only into the protrusion 413 , and does not extend through the bottom wall 412 and the peripheral wall 410 of the shell unit 40 . As such, water cannot seep into the shell unit 40 through the first stitch line 52 .
- the outer part 511 of the welt 50 is sewn to the thin pad 32 through the second stitch line 52 ′. Afterwards, the thin pad 32 is adhered to the outsole 31 .
- the outer part 511 of the welt 50 may be directly sewn to the outsole 31 , dispensing with the need for the thin pad 32 .
- the shell unit 40 and the sole unit 30 are interconnected by bonding the bottom wall 412 to the sole unit 30 through the cushion pad 44 using adhesive and by fastening the protrusion 413 to the sole unit 30 through the welt 50 using the first and second stitch lines 52 , 52 ′, the shell unit 40 and the sole unit 30 have a strong and reliable connection so that the service life of the foot covering of the present invention can be prolonged.
- the shell unit 40 and the welt 50 are made independently.
- the shell unit 40 may have a simple shape that can be formed easily, whereas the welt 50 can be provided with any complicated shape using a suitable mold, or using an existing, commercially available welt product.
- the production of the foot covering of the present invention is not only easy, but also the production cost is minimized. Further, the foot covering can have a complicated shape and an enhanced outer appearance.
- the shell unit 40 Since the shell unit 40 is provided with the protrusion 413 , it can be connected with welts of a variety of different configurations.
- the shell unit 40 is provided with the protrusion 413 that extends downwardly from the bottom wall 412 for connection with the welt 50 by sewing, the first stitch line 52 does not extend through the bottom wall 412 and the peripheral wall 410 of the shell unit 40 , so that the shell unit 40 has no stitch line that permits water to seep thereinto. A waterproof effect is thus achieved.
- a waterproof foot covering according to the second preferred embodiment of the present invention is shown to be similar to the first preferred embodiment.
- the bottom wall ( 412 II) of the shell unit ( 40 II) is provided with an opening ( 415 II) so as to facilitate assembly of the entire foot covering.
- the protrusion 413 of the shell unit 40 , 40 II may be formed with an integral welt so that the bottom end of the shell unit 40 , 40 II has an outwardly turned flange and so that the shell unit 40 , 40 II may have a stitch down bottom construction that can be stitched to the sole unit 30 , 30 II.
- manufacturing of the foot covering can be simplified and the time for manufacturing can be reduced.
Landscapes
- Health & Medical Sciences (AREA)
- Epidemiology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
Abstract
A foot covering includes a sole unit, a shell unit, and a welt. The shell unit has a substantially horizontal bottom wall, a peripheral wall extending upwardly from the bottom wall, and a protrusion extending downwardly from the bottom wall and elongated along the peripheral wall. The welt is attached to the sole unit and the shell unit, and has an inner part connected to the protrusion, and an outer part sewn to the sole unit.
Description
- 1. Field of the Invention
- The invention relates to a foot covering, more particularly to a welted waterproof foot covering.
- 2. Description of the Related Art
- Referring to
FIG. 1 , a conventional waterproof foot covering 10, as disclosed in U.S. Pat. No. 6,065,227, includes arubber outsole 11, a lower enclosingshell 12 made of plastic, and anupper enclosure 13 made of leather or fabric material. A bottom portion of the lower enclosingshell 12 is fixed to theoutsole 11. A bottom end of theupper enclosure 13 is connected to a top periphery of the lower enclosingshell 12 so as to define a foot-receiving chamber 14. Theoutsole 11 and the lower enclosingshell 12 are made of waterproof materials. Theoutsole 11 has anextension part 111 projecting upwardly from a top periphery thereof so as to extend beyond ajunction 15 between the lower enclosingshell 12 and theoutsole 11. As such, water may be further prevented from entering the foot-receivingchamber 14 through thejunction 15. However, it is difficult to make complicated decorative modifications to an outer appearance of the conventional foot covering 10, so that the conventional foot covering 10 looks monotonous and unattractive. - Referring to
FIG. 2 , another conventional waterproof foot covering 20 is shown to include anoutsole 21, avamp 22, and a connectingpad 23 having an L-shaped cross section, which are all made of waterproof materials. Theoutsole 21 has anextension part 211 projecting upwardly from a top periphery thereof and adhered directly to a bottom periphery of thevamp 22. The L-shaped connectingpad 23 is disposed inside thevamp 22 so as to prevent water from entering the foot covering 20 through a crevice 24 between theextension part 211 of theoutsole 21 and the bottom periphery of thevamp 22. The L-shaped connectingpad 23 has a bottom side adhered to theoutsole 21, and a lateral side adhered to an inner wall of the bottom periphery of thevamp 22. However, since the adhesive bonding area between theoutsole 21 and thevamp 22 is reduced, the connection therebetween is not strong and durable. - Still another conventional waterproof foot covering, as disclosed in U.S. Pat. No. 6,338,205, includes a plastic web platform molded integrally with a bottom portion of a plastic waterproof shell. The web platform is stitched to an outsole, thereby firmly securing the shell and the web platform to the outsole. Since the web platform is formed integrally with the shell, the material of the web platform is limited to be the same as that of the shell such that the color of the conventional foot covering is monotonous, and the aesthetic quality thereof poor.
- Therefore, the object of the present invention is to provide a waterproof foot covering that is capable of overcoming the aforementioned drawbacks of the prior art.
- Accordingly, a foot covering of this invention comprises a sole unit, a shell unit, and a welt. The shell unit has a substantially horizontal bottom wall, a peripheral wall extending upwardly from the bottom wall, and a protrusion extending downwardly from the bottom wall and elongated along the peripheral wall. The welt is attached to the sole unit and the shell unit, and has an inner part connected to the protrusion, and an outer part sewn to the sole unit.
- Other features and advantages of the present invention will become apparent in the following detailed description of the preferred embodiments with reference to the accompanying drawings, of which:
-
FIG. 1 is a partially sectioned view of a conventional waterproof foot covering disclosed in U.S. Pat. No. 6,065,227; -
FIG. 2 is a fragmentary sectional view of another conventional waterproof foot covering; -
FIG. 3 is a partially sectioned view of the first preferred embodiment of a foot covering according to the present invention; -
FIG. 4 is a fragmentary exploded perspective view of a sole unit, a shell unit, and a welt of the first preferred embodiment; -
FIG. 5 is a fragmentary assembled sectional view ofFIG. 4 ; -
FIG. 6 is a partially sectioned view of the second preferred embodiment of a foot covering according to the present invention; and -
FIG. 7 is a fragmentary rear sectional view of the second preferred embodiment. - Before the present invention is described in greater detail, it should be noted that same reference numerals have been used to denote like elements throughout the specification.
- Referring to
FIGS. 3 to 5 , the first preferred embodiment of a foot covering according to the present invention is exemplified as aboot 100, and is shown to comprise asole unit 30, ashell unit 40, an upper 60, and awelt 50. - In this embodiment, the
sole unit 30 includes anoutsole 31, and athin pad 32 adhered fixedly to a top face of theoutsole 31. Alternatively, thesole unit 30 may have theoutsole 31 combined with a midsole (not shown). - The
shell unit 40 defines a foot-receiving chamber 411, and has a substantiallyhorizontal bottom wall 412, aperipheral wall 410 extending upwardly from thebottom wall 412, aprotrusion 413 extending downwardly from thebottom wall 412 and elongated along theperipheral wall 410, awaterproof layer 42 fixed to an inner face of theperipheral wall 410, and alining 43 covering thewaterproof layer 42 and adapted to contact a wearer's foot. Theprotrusion 413 and thebottom wall 412 cooperatively define a receivinggroove 414 for receiving acushion pad 44 therein. Thecushion pad 44 is first adhered fixedly to thebottom wall 412 and theprotrusion 413, after which it is adhered fixedly to a top face of thethin pad 32 so as to fix theshell unit 40 to thesole unit 30. Thebottom wall 412 has afront portion 401, and aheel portion 402 connected to thefront portion 401. In this embodiment, theprotrusion 413 forms a loop at the bottom side of thebottom wall 412 along the peripheries of the front andheel portions - An upper 60 is connected to a top portion of the
shell unit 40. - The
welt 50 is disposed between theshell unit 40 and thesole unit 30, surrounds the loop of theprotrusion 413, and extends along the peripheries of the front andheel portions welt 50 is made of plastic, and has a substantially L-shaped cross section. Thewelt 50 has aninner part 514 sewn to theprotrusion 413 along afirst stitch line 52, anouter part 511 sewn to thethin pad 32 of thesole unit 30 along asecond stitch line 52′, anupper rib 512 projecting upwardly from theinner part 514 and adhered to an outer face of theperipheral wall 410, and anindentation 513 formed between the inner andouter parts - During attachment of the
welt 50 to theprotrusion 413 by sewing, thefirst stitch line 52 penetrates theinner part 514 from theindentation 513 so as to extend through theprotrusion 413. Thefirst stitch line 52 extends only into theprotrusion 413, and does not extend through thebottom wall 412 and theperipheral wall 410 of theshell unit 40. As such, water cannot seep into theshell unit 40 through thefirst stitch line 52. After theinner part 514 of thewelt 50 and theshell unit 40 are sewn together, theouter part 511 of thewelt 50 is sewn to thethin pad 32 through thesecond stitch line 52′. Afterwards, thethin pad 32 is adhered to theoutsole 31. Alternatively, theouter part 511 of thewelt 50 may be directly sewn to theoutsole 31, dispensing with the need for thethin pad 32. - The advantages of the present invention can be summarized as follows:
- 1. Because the
shell unit 40 and thesole unit 30 are interconnected by bonding thebottom wall 412 to thesole unit 30 through thecushion pad 44 using adhesive and by fastening theprotrusion 413 to thesole unit 30 through thewelt 50 using the first andsecond stitch lines shell unit 40 and thesole unit 30 have a strong and reliable connection so that the service life of the foot covering of the present invention can be prolonged. - 2. The
shell unit 40 and thewelt 50 are made independently. Hence, theshell unit 40 may have a simple shape that can be formed easily, whereas thewelt 50 can be provided with any complicated shape using a suitable mold, or using an existing, commercially available welt product. As such, the production of the foot covering of the present invention is not only easy, but also the production cost is minimized. Further, the foot covering can have a complicated shape and an enhanced outer appearance. - 3. Since the
shell unit 40 is provided with theprotrusion 413, it can be connected with welts of a variety of different configurations. - 4. Since the
shell unit 40 is provided with theprotrusion 413 that extends downwardly from thebottom wall 412 for connection with thewelt 50 by sewing, thefirst stitch line 52 does not extend through thebottom wall 412 and theperipheral wall 410 of theshell unit 40, so that theshell unit 40 has no stitch line that permits water to seep thereinto. A waterproof effect is thus achieved. - Referring to
FIGS. 6 and 7 , a waterproof foot covering according to the second preferred embodiment of the present invention is shown to be similar to the first preferred embodiment. However, in this embodiment, the bottom wall (412II) of the shell unit (40II) is provided with an opening (415II) so as to facilitate assembly of the entire foot covering. - It should be noted that, aside from the aforementioned embodiment, the
protrusion 413 of theshell unit 40, 40II may be formed with an integral welt so that the bottom end of theshell unit 40, 40II has an outwardly turned flange and so that theshell unit 40, 40II may have a stitch down bottom construction that can be stitched to thesole unit 30, 30II. As such, manufacturing of the foot covering can be simplified and the time for manufacturing can be reduced. - While the present invention has been described in connection with what are considered the most practical and preferred embodiments, it is understood that this invention is not limited to the disclosed embodiments but is intended to cover various arrangements included within the spirit and scope of the broadest interpretation so as to encompass all such modifications and equivalent arrangements.
Claims (10)
1. A foot covering, comprising:
a sole unit;
a shell unit having a substantially horizontal bottom wall, a peripheral wall extending upwardly from said bottom wall, and a protrusion extending downwardly from said bottom wall and elongated along said peripheral wall; and
a welt attached to said sole unit and said shell unit, and having an inner part connected to said protrusion, and an outer part sewn to said sole unit.
2. The foot covering of claim 1 , wherein said inner part is sewn to said protrusion along a first stitch line, and said outer part is sewn to said sole unit along a second stitch line.
3. The foot covering of claim 2 , wherein said welt further includes an upper rib projecting upwardly from said inner part and adhered to said peripheral wall, and an indentation formed between said inner and outer parts, said first stitch line penetrating said inner part from said indentation to extend through said protrusion.
4. The foot covering of claim 2 , further comprising a cushion pad disposed between said bottom wall and said sole unit and within a space defined by said protrusion.
5. The foot covering of claim 4 , wherein said protrusion forms a loop at the bottom side of said bottom wall.
6. The foot covering of claim 4 , wherein said protrusion forms a portion of a loop at the bottom side of said bottom wall.
7. The foot covering of claim 1 , wherein said sole unit includes an outsole, and a pad adhered fixedly to a top face of said outsole, said welt being sewn to said pad.
8. The foot covering of claim 5 , wherein said welt extends around said loop of said protrusion.
9. The foot covering of claim 6 , wherein said welt extends around said portion of said loop of said protrusion.
10. The foot covering of claim 1 , wherein said bottom wall is provided with an opening.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/870,145 US20090094865A1 (en) | 2007-10-10 | 2007-10-10 | Welted waterproof foot covering |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/870,145 US20090094865A1 (en) | 2007-10-10 | 2007-10-10 | Welted waterproof foot covering |
Publications (1)
Publication Number | Publication Date |
---|---|
US20090094865A1 true US20090094865A1 (en) | 2009-04-16 |
Family
ID=40532762
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/870,145 Abandoned US20090094865A1 (en) | 2007-10-10 | 2007-10-10 | Welted waterproof foot covering |
Country Status (1)
Country | Link |
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US (1) | US20090094865A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20120073164A1 (en) * | 2010-09-24 | 2012-03-29 | Linth Andrew J | Waterproof footwear and method of making the same |
US20130067769A1 (en) * | 2011-09-15 | 2013-03-21 | New Miracle Trading Limited | Footwear device |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3313048A (en) * | 1964-04-14 | 1967-04-11 | Mid States Shoe Co | Cushion shoe |
US6065227A (en) * | 1997-03-31 | 2000-05-23 | Chen; Eddie | Waterproof foot covering |
US6226895B1 (en) * | 1998-06-25 | 2001-05-08 | Wolverine World Wide, Inc. | Footwear construction |
US6338205B2 (en) * | 1999-12-29 | 2002-01-15 | Georgia Boot Llc | Footwear with molded web platform for attaching outsole |
US6637131B2 (en) * | 2001-12-28 | 2003-10-28 | Tsui-Fang Lee | Waterproof shoe |
US7010867B2 (en) * | 2003-07-31 | 2006-03-14 | Wolverine World Wide, Inc. | Articulated welt footwear construction and related method of manufacture |
US7644519B2 (en) * | 2005-07-01 | 2010-01-12 | Zhongshan United Shoe Co. Ltd. | Waterproof shoes with thermoplastic polyurethane (TPU) insteps |
-
2007
- 2007-10-10 US US11/870,145 patent/US20090094865A1/en not_active Abandoned
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3313048A (en) * | 1964-04-14 | 1967-04-11 | Mid States Shoe Co | Cushion shoe |
US6065227A (en) * | 1997-03-31 | 2000-05-23 | Chen; Eddie | Waterproof foot covering |
US6226895B1 (en) * | 1998-06-25 | 2001-05-08 | Wolverine World Wide, Inc. | Footwear construction |
US6338205B2 (en) * | 1999-12-29 | 2002-01-15 | Georgia Boot Llc | Footwear with molded web platform for attaching outsole |
US6637131B2 (en) * | 2001-12-28 | 2003-10-28 | Tsui-Fang Lee | Waterproof shoe |
US7010867B2 (en) * | 2003-07-31 | 2006-03-14 | Wolverine World Wide, Inc. | Articulated welt footwear construction and related method of manufacture |
US7644519B2 (en) * | 2005-07-01 | 2010-01-12 | Zhongshan United Shoe Co. Ltd. | Waterproof shoes with thermoplastic polyurethane (TPU) insteps |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20120073164A1 (en) * | 2010-09-24 | 2012-03-29 | Linth Andrew J | Waterproof footwear and method of making the same |
US20130067769A1 (en) * | 2011-09-15 | 2013-03-21 | New Miracle Trading Limited | Footwear device |
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Legal Events
Date | Code | Title | Description |
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AS | Assignment |
Owner name: CHEN, EDDIE, TAIWAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:CHEN, EDDIE;HSU, PHOENIX;CHANG, PHYLLIS;REEL/FRAME:019941/0600 Effective date: 20070925 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |