Granted Patent
Utility
US 6,729,392
· Confirmation No. 1687
TUBING HANGER WITH BALL VALVE IN THE ANNULUS BORE
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Code | Description | Pages | ||
|---|---|---|---|---|---|
| 2014-04-01 | MFEE.C.AD |
Maintenance Fee Address Change | 1 | View | |
| 2014-04-01 | R3.73 |
Assignee showing of ownership per 37 CFR 3.73 | 1 | View | |
| 2014-04-01 | N417 |
Electronic Filing System Acknowledgment Receipt | 2 | View | |
| 2004-03-15 | IFEE |
Issue Fee Payment (PTO-85B) | 2 | View | |
| 2002-02-08 | TRNA |
Transmittal of New Application | 1 | View | |
| 2002-02-08 | SPEC |
Specification | 14 | View | |
| 2002-02-08 | CLM |
Claims | 6 | View | |
| 2002-02-08 | ABST |
Abstract | 1 | View | |
| 2002-02-08 | DRW |
Drawings-only black and white line drawings | 7 | View | |
| 2002-02-08 | OATH |
Oath or Declaration filed | 3 | View |
Inventors
Blake DeBerry
Singapore, SINGAPORE
Larry Reimert
Houston, TX
Attorneys & Agents of Record
Classification
USPC
166/75.14
E21B33/043
E21B2200/04
E21B33/0353
E21B34/04
Prosecution
- Examiner
- HALFORD, BRIAN D
- Art Unit
- 3672
- Docket No.
- DRIA-126
- Confirmation No.
- 1687
Publication
- Pub. No.
- US20030150620A1
- Pub. Date
- 2003-08-14
Patent Term Adjustment
0days
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Quick Facts
- Patent No.
- US 6,729,392
- App. No.
- 10/071,650
- Filed
- 2002-02-08
- Granted
- 2004-05-04
- Pub. No.
- US20030150620A1
- Examiner
- HALFORD, BRIAN D
- Art Unit
- 3672
- PTA
- 0 days
External Links