Granted Patent
Utility
US 6,648,021
· Confirmation No. 1942
GAS CONTROL DEVICE AND METHOD OF SUPPLYING GAS
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⬇ PDF
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Code | Description | Pages | ||
|---|---|---|---|---|---|
| 2003-08-26 | IFEE |
Issue Fee Payment (PTO-85B) | 1 | View | |
| 2002-05-02 | TRNA |
Transmittal of New Application | 6 | View | |
| 2002-05-02 | SPEC |
Specification | 55 | View | |
| 2002-05-02 | CLM |
Claims | 22 | View | |
| 2002-05-02 | ABST |
Abstract | 2 | View | |
| 2002-05-02 | DRW |
Drawings-only black and white line drawings | 18 | View | |
| 2002-05-02 | OATH |
Oath or Declaration filed | 3 | View |
Inventors
Dao-Hong Zheng
London, UNITED KINGDOM
John Irven
High Wycombe, UNITED KINGDOM
Mark Allen George
Santa Rosa, CA
Classification
USPC
137/240
F17C13/04
Y10T137/0419
Y10T137/4259
Y10T137/87249
Y10T137/87885
F17C5/02
F17C7/02
F17C13/025
F17C2205/0338
F17C2205/0391
F17C2227/044
F17C2227/048
F17C2270/0518
F17D1/04
Prosecution
- Examiner
- WALTON, GEORGE L
- Art Unit
- 3753
- Docket No.
- 05675 C5
- Confirmation No.
- 1942
Foreign Priority
9724168.1
·
1997-11-14
·
UNITED KINGDOM
Publication
- Pub. No.
- US20020124883A1
- Pub. Date
- 2002-09-12
Patent Term Adjustment
-87days
No recorded assignments were found for this patent.
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Quick Facts
- Patent No.
- US 6,648,021
- App. No.
- 10/137,078
- Filed
- 2002-05-02
- Granted
- 2003-11-18
- Pub. No.
- US20020124883A1
- Examiner
- WALTON, GEORGE L
- Art Unit
- 3753
- PTA
- -87 days
External Links