Granted Patent
Utility
US 6,457,528
· Confirmation No. 7251
METHOD FOR PREVENTING CRITICAL ANNULAR PRESSURE BUILDUP
Inventor:
John J. Staudt
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⬇ PDF
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Code | Description | Pages | ||
|---|---|---|---|---|---|
| 2010-09-22 | PET.POA.WDRW |
Request for withdrawal as attorney or agent | 2 | View | |
| 2010-09-22 | N417 |
Electronic Filing System Acknowledgment Receipt | 2 | View | |
| 2001-03-29 | TRNA |
Transmittal of New Application | 1 | View | |
| 2001-03-29 | SPEC |
Specification | 14 | View | |
| 2001-03-29 | CLM |
Claims | 3 | View | |
| 2001-03-29 | ABST |
Abstract | 1 | View | |
| 2001-03-29 | DRW |
Drawings-only black and white line drawings | 5 | View | |
| 2001-03-29 | OATH |
Oath or Declaration filed | 2 | View |
Inventors
John J. Staudt
Friendswood, TX
Attorneys & Agents of Record
Classification
USPC
166/363
E21B41/0021
E21B17/08
E21B34/06
Prosecution
- Examiner
- DANG, HOANG C
- Art Unit
- 3672
- Docket No.
- 0638CG-45
- Confirmation No.
- 7251
Publication
- Pub. No.
- US20020139536A1
- Pub. Date
- 2002-10-03
Patent Term Adjustment
0days
NUNC PRO TUNC ASSIGNMENT
Recorded 2019-09-24
ASSIGNMENT OF ASSIGNOR'S INTEREST
Recorded 2002-10-21
from
STAUDT, JOHN J.
ASSIGNMENT OF ASSIGNOR'S INTEREST
Recorded 2001-03-29
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Quick Facts
- Patent No.
- US 6,457,528
- App. No.
- 09/821,251
- Filed
- 2001-03-29
- Granted
- 2002-10-01
- Pub. No.
- US20020139536A1
- Examiner
- DANG, HOANG C
- Art Unit
- 3672
- PTA
- 0 days
External Links