US3282346A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Subsurface well packers
Assignee: Baker Hughes Oilfield Operations LLC
•
Filing: 1964-03-09
•
Granted: 1966-11-01
•
Expires: 1984-03-09
Abstract
No abstract record available.
Inventors
- 👤 Jackson R Claycomb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:47
CPC Classifications
E; E21; E21B; E21B23/00; E21B23/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
52 words
IN A WELL PACKER ADAPTED TO BE SET IN A CONDUIT DISPOSED IN A WELL BORE: BODY MEANS; AN INITIALLY RETRACTED SOFT ALUMINUM SLEEVE ADAPTED TO SURROUND SAID BODY MEANS; EXPANDER MEANS MOVABLE RELATIVELY LONGITUDINALLY WITHIN SAID SLEEVE TO ENLARGE ITS INTERNAL AND EXTERNAL DIAMETERS AND FORCE IT AGAINST THE CONDUIT; AND
Claim 2
Dependent Claim
52 words
IN A WELL PACKER ADAPTED TO BE SET IN A CONDUIT DISPOSED IN A WELL BORE: BODY MEANS; AN INITIALLY RETRACTED SOFT ALUMINUM SLEEVE ADAPTED TO SURROUND SAID BODY MEANS; EXPANDER MEANS MOVABLE RELATIVELY LONGITUDINALLY WITHIN SAID SLEEVE TO ENLARGE ITS INTERNAL AND EXTERNAL DIAMETERS AND FORCE IT AGAINST THE CONDUIT; AND
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-31 | 1970-05-02 | 1970-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-31 | 1974-05-02 | 1974-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-31 | 1978-05-02 | 1978-11-01 | $7700.00 | Window Closed / Lapsed |