Granted Patent
Utility
US 6,681,860
· Confirmation No. 7810
DOWNHOLE TOOL WITH PORT ISOLATION
Patented Case
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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 | |
| 2011-11-18 | EBCC.AD |
Notice of Change of Address Place in File Wrapper Due to Electronic Business Center(EBC) Customer Number Update | 1 | View | |
| 2003-12-04 | IFEE |
Issue Fee Payment (PTO-85B) | 1 | View | |
| 2001-12-04 | TRNA |
Transmittal of New Application | 5 | View | |
| 2001-12-04 | SPEC |
Specification | 15 | View | |
| 2001-12-04 | CLM |
Claims | 7 | View | |
| 2001-12-04 | ABST |
Abstract | 1 | View | |
| 2001-12-04 | DRW |
Drawings-only black and white line drawings | 6 | View | |
| 2001-12-04 | OATH |
Oath or Declaration filed | 3 | View |
Inventors
John M. Yokley
Kingwood, TX
Larry E. Reimert
Houston, TX
Attorneys & Agents of Record
Classification
USPC
166/382
E21B33/068
E21B34/142
E21B23/01
E21B43/10
Prosecution
- Examiner
- TSAY, FRANK
- Art Unit
- 3672
- Customer No.
- 39705
- Docket No.
- DRIA-106
- Confirmation No.
- 7810
Patent Term Adjustment
-31days
ASSIGNMENT OF ASSIGNOR'S INTEREST
Recorded 2001-12-04
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Quick Facts
- Patent No.
- US 6,681,860
- App. No.
- 10/004,945
- Filed
- 2001-12-04
- Granted
- 2004-01-27
- Examiner
- TSAY, FRANK
- Art Unit
- 3672
- PTA
- -31 days
External Links