CA2481924A1 - Toilet flushers for water tanks with novel valves and dispensers - Google Patents
Toilet flushers for water tanks with novel valves and dispensers Download PDFInfo
- Publication number
- CA2481924A1 CA2481924A1 CA002481924A CA2481924A CA2481924A1 CA 2481924 A1 CA2481924 A1 CA 2481924A1 CA 002481924 A CA002481924 A CA 002481924A CA 2481924 A CA2481924 A CA 2481924A CA 2481924 A1 CA2481924 A1 CA 2481924A1
- Authority
- CA
- Canada
- Prior art keywords
- tank
- flush
- water
- valve
- pressure
- 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.)
- Granted
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
- E03D1/00—Water flushing devices with cisterns ; Setting up a range of flushing devices or water-closets; Combinations of several flushing devices
- E03D1/30—Valves for high or low level cisterns; Their arrangement ; Flushing mechanisms in the cistern, optionally with provisions for a pre-or a post- flushing and for cutting off the flushing mechanism in case of leakage
- E03D1/36—Associated working of inlet and outlet valves
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
- E03D5/00—Special constructions of flushing devices, e.g. closed flushing system
- E03D5/10—Special constructions of flushing devices, e.g. closed flushing system operated electrically, e.g. by a photo-cell; also combined with devices for opening or closing shutters in the bowl outlet and/or with devices for raising/or lowering seat and cover and/or for swiveling the bowl
- E03D5/105—Special constructions of flushing devices, e.g. closed flushing system operated electrically, e.g. by a photo-cell; also combined with devices for opening or closing shutters in the bowl outlet and/or with devices for raising/or lowering seat and cover and/or for swiveling the bowl touchless, e.g. using sensors
Landscapes
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Aviation & Aerospace Engineering (AREA)
- Sanitary Device For Flush Toilet (AREA)
- Fluid-Driven Valves (AREA)
- Self-Closing Valves And Venting Or Aerating Valves (AREA)
Abstract
A tank-type flusher (100) includes an intake valve (102), a flush valve (104 ), and a sensor module (20). The intake valve (102) is connected to an external water source (17) and constructed to close water flow to a water storage tan k (16) at about a predefined water level in the water tank (16). The flush val ve is constructed to control a flush valve member (112) between a seated and unseated state allowing water to discharge from the water tank (16) to a toilet bowl (13). The sensor module (20) is located at a reference location external to the water storage tank (16).
Claims (42)
1. A tank-type flusher comprising;
an intake valve connected to an external water source and constructed to close water flow to a water storage tank at about a predefined water level in said water tank;
a flush valve constructed to control a flush valve member between a seated state and an unseated state allowing water discharge from said water tank into a toilet bowl; and a sensor module located at a reference location external to said water storage tank.
an intake valve connected to an external water source and constructed to close water flow to a water storage tank at about a predefined water level in said water tank;
a flush valve constructed to control a flush valve member between a seated state and an unseated state allowing water discharge from said water tank into a toilet bowl; and a sensor module located at a reference location external to said water storage tank.
2. The tank-type flusher of claim 1 wherein said reference location is where an input line of said external water source is coupled to said water storage tank.
3. The tank-type flusher of claim 2 wherein said water storage tank is an external tank.
4. The tank-type flusher of claim 1 wherein said water storage tank is an internal tank located behind a wall.
5. The tank-type flusher of claim 1 wherein said sensor module includes a light source and a light detector.
6. The tank-type flusher of claim 1 wherein said sensor module includes a light detector operating in the range of 350 nm to 1500 nm.
7. The tank-type flusher of claim 1 wherein said sensor module provides a signal to a controller that controls hydraulic actuation of the flush valve.
8. The tank-type flusher of claim 1 wherein said flush valve is constructed for manual actuation.
9. A method of operating a tank-type flusher comprising;
providing an intake valve connected to an external water source and constructed to close water flow to a water storage tank at about a predefined water level in said water tank; and a flush valve constructed to control a flush valve member between a seated state and an unseated state allowing water discharge from said water tank into a toilet bowl; and actuating the flush valve by a signal from a sensor module located at a reference location external to said water storage tank.
providing an intake valve connected to an external water source and constructed to close water flow to a water storage tank at about a predefined water level in said water tank; and a flush valve constructed to control a flush valve member between a seated state and an unseated state allowing water discharge from said water tank into a toilet bowl; and actuating the flush valve by a signal from a sensor module located at a reference location external to said water storage tank.
10. A tank-type flusher, comprising:
an intake valve connected to an external water source and constructed to close water flow to a water storage tank at about a predefined water level in said water tank;
a diaphragm-operated flush valve constructed to control a flush valve member between a seated state and an unseated state allowing water discharge from said water tank into a toilet bowl;
a diaphragm, separating a flush-valve chamber and a pilot chamber, arranged to seal said flush-valve chamber and thereby maintain pressure forcing said flush valve member to said seated state preventing said water discharge from said water storage tank to said toilet bowl; and a pressure control mechanism constructed and arranged, upon actuation, to reduce pressure in said pilot chamber of said diaphragm-operated flush valve to cause deformation of said diaphragm and thereby reduce pressure in said flush-valve chamber causing said water discharge.
an intake valve connected to an external water source and constructed to close water flow to a water storage tank at about a predefined water level in said water tank;
a diaphragm-operated flush valve constructed to control a flush valve member between a seated state and an unseated state allowing water discharge from said water tank into a toilet bowl;
a diaphragm, separating a flush-valve chamber and a pilot chamber, arranged to seal said flush-valve chamber and thereby maintain pressure forcing said flush valve member to said seated state preventing said water discharge from said water storage tank to said toilet bowl; and a pressure control mechanism constructed and arranged, upon actuation, to reduce pressure in said pilot chamber of said diaphragm-operated flush valve to cause deformation of said diaphragm and thereby reduce pressure in said flush-valve chamber causing said water discharge.
11. The tank-type flusher of claim 10 wherein said intake valve includes a float constructed and arranged without any fixed coupling to any valve member.
12. The tank-type flusher of claim 10 wherein said intake valve includes a float which freely floats within a float cage.
13. The tank-type flusher of claim 10 wherein said intake valve is actuated by a water level detector.
14. The tank-type flusher of claim 13 wherein said water level detector includes a reed sensor
15. The tank-type flusher of claim 1 wherein said pressure control mechanism is controlled by a solenoid.
16. The tank-type flusher of claim 1 wherein said flush valve member is constructed to move linearly within a flush valve housing.
17. The tank-type flusher of claim 1 wherein said flush-valve chamber is arranged to receive water pressure from said external source and being arranged to prevent said water discharge utilizing at least a portion of said water pressure.
18. A tank-type flusher, comprising:
an intake valve constructed to close water flow from an external water source to a water storage tank when there is a predefined water level in said water tank, said intake valve including a float constructed and arranged to freely float within a float cage; and a diaphragm-operated flush valve including a flush-valve chamber, said diaphragm-operated flush valve being constructed to open upon actuation to discharge water into a toilet bowl from said water tank.
an intake valve constructed to close water flow from an external water source to a water storage tank when there is a predefined water level in said water tank, said intake valve including a float constructed and arranged to freely float within a float cage; and a diaphragm-operated flush valve including a flush-valve chamber, said diaphragm-operated flush valve being constructed to open upon actuation to discharge water into a toilet bowl from said water tank.
19. A tank-type flusher, comprising:
an intake valve connected to an external water source and constructed to close water flow to a water storage tank at about a predefined water level in said water tank; and a flush valve constructed to control position of a flush valve member movable between a seated state and an unseated state allowing water discharge from said water tank into a toilet bowl; said flush valve member being biased to said unseated state by a bias member and being forced to said seated state by at least a portion of water pressure from said external source.
an intake valve connected to an external water source and constructed to close water flow to a water storage tank at about a predefined water level in said water tank; and a flush valve constructed to control position of a flush valve member movable between a seated state and an unseated state allowing water discharge from said water tank into a toilet bowl; said flush valve member being biased to said unseated state by a bias member and being forced to said seated state by at least a portion of water pressure from said external source.
20. The tank-type flusher of claim 10, 18 or 19 wherein said intake valve and said flush valve are located within a single housing.
21. The tank-type flusher of claim 19 wherein said flush-valve chamber is arranged to receive a water pressure from said external source and is arranged to prevent said water discharge utilizing at least a portion of said water pressure.
22. The tank-type flusher of claim 19 wherein said diaphragm-operated flush valve is controlled by a solenoid.
23. The tank-type flusher of claim 10, 18 or 19 wherein said water tank is an exposed water tank.
24. The tank-type flusher of claim 10, 18 or 19 wherein said water tank is a concealed water tank located behind a wall.
25. The tank-type flusher of claim 10, 18 or 19 wherein said intake valve enables a variable water level in said tank.
26. The tank-type flusher of claim 10, 18 or 19 including a vacuum breaker arranged to prevent transfer of water from said tank to a water supply.
27. The tank-type flusher of claim 10, 18 or 19 including a manual actuator constructed and arranged to actuate said flush valve.
28. The tank-type flusher of claim 27 wherein said manual actuator is a push button actuator.
29. The tank-type flusher of claim 28 wherein said push button actuator is constructed to actuate said flush valve enabling a dual water volume flush.
30. The tank-type flusher of claim 28 wherein said push button actuator is constructed to actuate hydraulically said flush valve.
31. The tank-type flusher of claim 10, 18 or 19 including an automatic actuator constructed and arranged to actuate said flush valve.
32. The tank-type flusher of claim 31 wherein said automatic actuator is constructed to be triggered by an object sensor.
33. The tank-type flusher of claim 32 wherein said sensor registers presence of an object.
34. The tank-type flusher of claim 32 wherein said sensor registers movement of an object.
35. The tank-type flusher of claim 32 wherein said sensor is an optical sensor.
36. The tank-type flusher of claim 31 wherein said automatic actuator is constructed to actuate said flush valve enabling a dual water volume flush.
37. A flusher comprising:
a tank forming a flush outlet by which liquid in the tank may leave the tank for flushing;
a flush-valve member operable between an unseated state, in which it permits flow from the tan through the flush outlet, and a seated state, in which it prevents flow from the tank there through;
a valve-operating mechanism including a housing that defines a control chamber disposed and forms a line-pressure inlet that admits water line pressure into the control chamber and further forms a control-chamber pressure-relief outlet, by which pressure in the control chamber can be relieved, the valve-operating mechanism operating the flush-valve member to its seated state when the line pressure prevails in the control chamber and operating the flush-valve member to its unseated state when the pressure in the control chamber is relieved;
a pressurizer conduit having an upstream thereof and a downstream end t hereof that so communicates with the control chamber that pressurized water applied to the pressurizer conduit at an upstream end thereof can pressurize the control chamber; and a pressure controller interposed in the pressurizer conduit, the pressurizer conduit imposing a pressure drop from its upstream to its downstream side that increases and decreases with upstream pressure.
a tank forming a flush outlet by which liquid in the tank may leave the tank for flushing;
a flush-valve member operable between an unseated state, in which it permits flow from the tan through the flush outlet, and a seated state, in which it prevents flow from the tank there through;
a valve-operating mechanism including a housing that defines a control chamber disposed and forms a line-pressure inlet that admits water line pressure into the control chamber and further forms a control-chamber pressure-relief outlet, by which pressure in the control chamber can be relieved, the valve-operating mechanism operating the flush-valve member to its seated state when the line pressure prevails in the control chamber and operating the flush-valve member to its unseated state when the pressure in the control chamber is relieved;
a pressurizer conduit having an upstream thereof and a downstream end t hereof that so communicates with the control chamber that pressurized water applied to the pressurizer conduit at an upstream end thereof can pressurize the control chamber; and a pressure controller interposed in the pressurizer conduit, the pressurizer conduit imposing a pressure drop from its upstream to its downstream side that increases and decreases with upstream pressure.
38. A flusher comprising:
a tank forming a flush outlet by which liquid in the tank may leave the tank for flushing;
a flush-valve member operable between an unseated state, in which it permits flow from the tank through the flush outlet, and a seated state, in which it prevents flow from the tank therethrough;
a valve-operating mechanism including a housing that defines a control chamber disposed and forms a line-pressure inlet that admits water line pressure into the control chamber and further forms a control-chamber pressure-relief outlet, by which pressure in the control chamber can be relieved, the valve-operating mechanism operating the flush-valve member to its seated state when the line pressure prevails in the control chamber and operating the flush-valve member to its unseated state when the pressure in the control chamber is relieved;
a pressurizer conduit having an upstream thereof and a downstream end thereof that so communicates with the control chamber that pressurized water applied to the pressurizer conduit at an upstream end thereof can pressurize the control chamber; and a check valve interposed in the pressurizer conduit and oriented to permit flow toward the pressurizer conduit's upstream end but not toward its upstream end.
a tank forming a flush outlet by which liquid in the tank may leave the tank for flushing;
a flush-valve member operable between an unseated state, in which it permits flow from the tank through the flush outlet, and a seated state, in which it prevents flow from the tank therethrough;
a valve-operating mechanism including a housing that defines a control chamber disposed and forms a line-pressure inlet that admits water line pressure into the control chamber and further forms a control-chamber pressure-relief outlet, by which pressure in the control chamber can be relieved, the valve-operating mechanism operating the flush-valve member to its seated state when the line pressure prevails in the control chamber and operating the flush-valve member to its unseated state when the pressure in the control chamber is relieved;
a pressurizer conduit having an upstream thereof and a downstream end thereof that so communicates with the control chamber that pressurized water applied to the pressurizer conduit at an upstream end thereof can pressurize the control chamber; and a check valve interposed in the pressurizer conduit and oriented to permit flow toward the pressurizer conduit's upstream end but not toward its upstream end.
39. A flusher comprising:
tank forming a flush outlet by which liquid in the tank may leave the tank for flushing;
flush-valve member biased to an unseated state in which it permits flow from the tank through the flush outlet, and operable between its unseated state and a seated state, in which it prevents flow from the tank therethrough;
flush-valve housing that forms a flush-valve chamber in which at least a portion of the flush-valve member is movably disposed, the flush-valve housing further forming a flush-valve chamber pressure-relief outlet and a line-pressure inlet that so admits water line pressure into the flush-valve chamber as to keep the valve in its seated state when water line pressure above a minimum hold pressure prevails in the flush-valve chamber; and pressure-relief mechanism operable between a closed state, in which it prevents relief of flush-valve-chamber pressure through the flush-valve chamber pressure-relief outlet, and an open state, in which it relieves flush-valve-chamber pressure through the flush-valve chamber pressure-relief outlet.
tank forming a flush outlet by which liquid in the tank may leave the tank for flushing;
flush-valve member biased to an unseated state in which it permits flow from the tank through the flush outlet, and operable between its unseated state and a seated state, in which it prevents flow from the tank therethrough;
flush-valve housing that forms a flush-valve chamber in which at least a portion of the flush-valve member is movably disposed, the flush-valve housing further forming a flush-valve chamber pressure-relief outlet and a line-pressure inlet that so admits water line pressure into the flush-valve chamber as to keep the valve in its seated state when water line pressure above a minimum hold pressure prevails in the flush-valve chamber; and pressure-relief mechanism operable between a closed state, in which it prevents relief of flush-valve-chamber pressure through the flush-valve chamber pressure-relief outlet, and an open state, in which it relieves flush-valve-chamber pressure through the flush-valve chamber pressure-relief outlet.
40. A flusher comprising:
a tank forming a flush outlet by which liquid in the tank may leave the tank for flushing;
a flush-valve member operable between an unseated state, in which it permits flow from the tank through the flush outlet, and a seated state, in which it prevents flow from the tank therethrough; and a valve-operating mechanism including a housing that defines a control chamber disposed at a local location and forms a line-pressure inlet that admits water line pressure into the control chamber and further forms a control-chamber pressure-relief outlet, by which pressure in the control chamber can be relieved, the valve-operating mechanism operating the flush-valve member to one of said seated and unseated states thereof when the line pressure prevails in the control chamber and operating the flush-valve member to the other of said seated and unseated states thereof when the pressure in the control chamber is relieved.
a tank forming a flush outlet by which liquid in the tank may leave the tank for flushing;
a flush-valve member operable between an unseated state, in which it permits flow from the tank through the flush outlet, and a seated state, in which it prevents flow from the tank therethrough; and a valve-operating mechanism including a housing that defines a control chamber disposed at a local location and forms a line-pressure inlet that admits water line pressure into the control chamber and further forms a control-chamber pressure-relief outlet, by which pressure in the control chamber can be relieved, the valve-operating mechanism operating the flush-valve member to one of said seated and unseated states thereof when the line pressure prevails in the control chamber and operating the flush-valve member to the other of said seated and unseated states thereof when the pressure in the control chamber is relieved.
41. An electromagnetic actuator system, comprising:
an actuator including a solenoid coil and an armature housing constructed and arranged to receive in a movable relationship an armature;
a controller coupled to a power driver constructed to provide a drive signal to said solenoid coil for displacing said armature and thereby open or close a valve passage for fluid flow; and an actuator sensor constructed and arranged to sense a position of said armature and provide a signal to said controller.
an actuator including a solenoid coil and an armature housing constructed and arranged to receive in a movable relationship an armature;
a controller coupled to a power driver constructed to provide a drive signal to said solenoid coil for displacing said armature and thereby open or close a valve passage for fluid flow; and an actuator sensor constructed and arranged to sense a position of said armature and provide a signal to said controller.
42. An actuator system, comprising:
an actuator including an armature and a coil constructed to displace said armature by application of a coil drive;
an armature sensor constructed to detect displacement of said armature;
and a control circuit constructed to apply to said coil said coil drive upon receiving a signal originated from an external object sensor, said control circuit being also responsive to an output from said sensor.
an actuator including an armature and a coil constructed to displace said armature by application of a coil drive;
an armature sensor constructed to detect displacement of said armature;
and a control circuit constructed to apply to said coil said coil drive upon receiving a signal originated from an external object sensor, said control circuit being also responsive to an output from said sensor.
Applications Claiming Priority (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US37165502P | 2002-04-10 | 2002-04-10 | |
| US60/371,655 | 2002-04-10 | ||
| US10/174,919 US6752371B2 (en) | 2002-06-19 | 2002-06-19 | Valve actuator having small isolated plunger |
| US10/174,919 | 2002-06-19 | ||
| USPCT/US02/38758 | 2002-12-04 | ||
| PCT/US2002/038758 WO2003048464A2 (en) | 2001-12-04 | 2002-12-04 | Automatic bathroom flushers |
| PCT/US2002/041576 WO2003058102A1 (en) | 2001-12-26 | 2002-12-26 | Bathroom flushers with novel sensors and controllers |
| USPCT/US02/41576 | 2002-12-26 | ||
| PCT/US2003/011360 WO2003087641A1 (en) | 2002-04-10 | 2003-04-10 | Toilet flushers for water tanks with novel valves and dispensers |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2481924A1 true CA2481924A1 (en) | 2003-10-23 |
| CA2481924C CA2481924C (en) | 2012-03-27 |
Family
ID=33479165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2481924A Expired - Fee Related CA2481924C (en) | 2002-04-10 | 2003-04-10 | Toilet flushers for water tanks with novel valves and dispensers |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP1497581A4 (en) |
| JP (1) | JP4689165B2 (en) |
| AU (2) | AU2003223588B2 (en) |
| CA (1) | CA2481924C (en) |
| WO (1) | WO2003087641A1 (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005056938A1 (en) * | 2003-12-04 | 2005-06-23 | Arichell Technologies, Inc. | Passive sensors and control algorithms for faucets and bathroom flushers |
| US7921480B2 (en) | 2001-11-20 | 2011-04-12 | Parsons Natan E | Passive sensors and control algorithms for faucets and bathroom flushers |
| EP1706547A1 (en) * | 2003-12-04 | 2006-10-04 | Arichell Technologies, Inc. | Passive sensors and control algorithms for faucets and bathroom flushers |
| DE102004027948C5 (en) * | 2004-06-08 | 2010-01-28 | Hansa Metallwerke Ag | Sanitary fitting with a circuit arrangement |
| ES2381210T3 (en) * | 2007-12-18 | 2012-05-24 | Nestec S.A. | System for the preparation of a beverage from ingredients provided by an encoded insert |
| KR100946392B1 (en) * | 2008-03-21 | 2010-03-18 | 주식회사 에이에프 | Apparatus for waterway controlled water supply non-power chamber pot auto-flush device by water pressure and body weight |
| US8566971B2 (en) | 2009-11-17 | 2013-10-29 | Kohler Co. | Toilet flushing assembly and sequence |
| US8850630B2 (en) * | 2011-08-29 | 2014-10-07 | Sam Akbarpour | Dual flush device |
| CN103388356B (en) * | 2013-08-19 | 2015-05-13 | 刘吉向 | Self-sensing seat type water-saving environment-friendly closestool |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US143273A (en) | 1873-09-30 | Improvement in machines for cutting and threaping pipes | ||
| US238758A (en) | 1881-03-15 | William e | ||
| US241576A (en) | 1881-05-17 | Adhesive compound | ||
| US151098A (en) | 1874-05-19 | Improvement in dovetailing-machines | ||
| JPS59145844A (en) * | 1983-02-09 | 1984-08-21 | 東陶機器株式会社 | Toilet bowl washing apparatus |
| US5448784A (en) * | 1990-11-13 | 1995-09-12 | Smiley; Everett J. | Urinal assembly and electrically actuated valve for same |
| US5187818A (en) * | 1991-05-14 | 1993-02-23 | Barrett Sr John P | Flushing system for a water closet |
| JP3128790B2 (en) * | 1992-06-15 | 2001-01-29 | 東陶機器株式会社 | Water supply control device |
| GB2317191B (en) * | 1996-09-04 | 2000-11-15 | Cistermiser Ltd | Valve apparatus for use in fluids storage vessels |
| US5970527A (en) * | 1997-03-07 | 1999-10-26 | W/C Technology Corporation | Pressurized water closet flushing system |
| US5920919A (en) * | 1997-04-22 | 1999-07-13 | Chang Shih-Chih | Toilet flush system |
| US6202227B1 (en) * | 1999-03-05 | 2001-03-20 | John Gurowitz | Automatic toilet flushing system |
| US6212697B1 (en) | 1999-09-07 | 2001-04-10 | Arichell Technologies, Inc. | Automatic flusher with bi-modal sensitivity pattern |
-
2003
- 2003-04-10 AU AU2003223588A patent/AU2003223588B2/en not_active Ceased
- 2003-04-10 WO PCT/US2003/011360 patent/WO2003087641A1/en active Application Filing
- 2003-04-10 CA CA2481924A patent/CA2481924C/en not_active Expired - Fee Related
- 2003-04-10 JP JP2003584555A patent/JP4689165B2/en not_active Expired - Fee Related
- 2003-04-10 EP EP03719726A patent/EP1497581A4/en not_active Withdrawn
-
2010
- 2010-03-03 AU AU2010200810A patent/AU2010200810A1/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| EP1497581A1 (en) | 2005-01-19 |
| JP4689165B2 (en) | 2011-05-25 |
| AU2003223588B2 (en) | 2010-03-18 |
| AU2010200810A1 (en) | 2010-03-25 |
| JP2005522608A (en) | 2005-07-28 |
| AU2003223588A1 (en) | 2003-10-27 |
| EP1497581A4 (en) | 2008-12-31 |
| WO2003087641A1 (en) | 2003-10-23 |
| CA2481924C (en) | 2012-03-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20180410 |