Granted Patent
Utility
US 6,637,515
· Confirmation No. 6745
METHOD AND APPARATUS FOR REDUCING PLUNGER SEAL WEAR ON AUTOMATIC CASING SWAB LIFT SYSTEMS
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Code | Description | Pages | ||
|---|---|---|---|---|---|
| 2003-08-29 | IFEE |
Issue Fee Payment (PTO-85B) | 1 | View | |
| 2003-08-29 | LET. |
Miscellaneous Incoming Letter | 2 | View | |
| 2001-10-09 | TRNA |
Transmittal of New Application | 3 | View | |
| 2001-10-09 | DRW |
Drawings-only black and white line drawings | 6 | View | |
| 2001-04-06 | TRNA |
Transmittal of New Application | 4 | View | |
| 2001-04-06 | SPEC |
Specification | 12 | View | |
| 2001-04-06 | CLM |
Claims | 4 | View | |
| 2001-04-06 | ABST |
Abstract | 1 | View | |
| 2001-04-06 | DRW |
Drawings-only black and white line drawings | 5 | View | |
| 2001-04-06 | OATH |
Oath or Declaration filed | 3 | View |
Inventors
Ronald C. Bishop
Flora Vista, NM
David P. Gregg
New Philadelphia, OH
Attorneys & Agents of Record
Classification
USPC
166/372
E21B43/121
E21B43/13
Prosecution
- Examiner
- BOMAR, THOMAS S
- Art Unit
- 3672
- Customer No.
- 22511
- Docket No.
- 06558/012001
- Confirmation No.
- 6745
Publication
- Pub. No.
- US20020170718A1
- Pub. Date
- 2002-11-21
Patent Term Adjustment
-53days
No related applications found.
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Quick Facts
- Patent No.
- US 6,637,515
- App. No.
- 09/827,675
- Filed
- 2001-04-06
- Granted
- 2003-10-28
- Pub. No.
- US20020170718A1
- Examiner
- BOMAR, THOMAS S
- Art Unit
- 3672
- PTA
- -53 days
External Links