Granted Patent
Utility
US 6,634,428
· Confirmation No. 7525
DELAYED OPENING BALL SEAT
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Code | Description | Pages | ||
|---|---|---|---|---|---|
| 2016-05-27 | SOL.NTC.SUIT |
Report on the filing or determination of an action regarding a patent | 1 | View | |
| 2003-08-19 | IFEE |
Issue Fee Payment (PTO-85B) | 1 | View | |
| 2003-08-19 | C.AD |
Change of Address | 1 | View | |
| 2001-08-20 | TRNA |
Transmittal of New Application | 2 | View | |
| 2001-08-20 | DRW |
Drawings-only black and white line drawings | 2 | View | |
| 2001-05-03 | TRNA |
Transmittal of New Application | 2 | View | |
| 2001-05-03 | SPEC |
Specification | 8 | View | |
| 2001-05-03 | CLM |
Claims | 5 | View | |
| 2001-05-03 | ABST |
Abstract | 1 | View | |
| 2001-05-03 | DRW |
Drawings-only black and white line drawings | 4 | View | |
| 2001-05-03 | OATH |
Oath or Declaration filed | 2 | View | |
| 2001-05-03 | LET. |
Miscellaneous Incoming Letter | 1 | View |
Inventors
Christiaan D. Krauss
Houston, TX
George Givens
Houston, TX
Attorneys & Agents of Record
Classification
USPC
166/317
E21B34/108
E21B34/142
Prosecution
- Examiner
- NEUDER, WILLIAM P
- Art Unit
- 3672
- Docket No.
- D5407-130 284-26625-US
- Confirmation No.
- 7525
Publication
- Pub. No.
- US20020162661A1
- Pub. Date
- 2002-11-07
Patent Term Adjustment
0days
No related applications found.
CHANGE OF NAME
Recorded 2017-06-27
ASSIGNMENT OF ASSIGNOR'S INTEREST
Recorded 2016-02-02
ASSIGNMENT OF ASSIGNOR'S INTEREST
Recorded 2001-05-03
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Quick Facts
- Patent No.
- US 6,634,428
- App. No.
- 09/848,532
- Filed
- 2001-05-03
- Granted
- 2003-10-21
- Pub. No.
- US20020162661A1
- Examiner
- NEUDER, WILLIAM P
- Art Unit
- 3672
- PTA
- 0 days
External Links