US3090441A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Collapsible dump bailer
Assignee: Jersey Production Research Co
•
Filing: 1960-09-12
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Granted: 1963-05-21
•
Expires: 1980-09-12
Abstract
No abstract record available.
Inventors
- 👤 David E Smink
- 👤 Garland C Terrel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:26
CPC Classifications
E; E21; E21B; E21B27/00; E21B27/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
51 words
A DUMP BAILER ADAPTED TO BE LOWERED IN A WELL BORE ON A WIRELINE COMPRISING A PLURALITY OF VERTICALLY EXTENSIBLE, COLLAPSIBLE, TELESCOPICALLY CONNECTED MEMBERS FORMING CHAMBERS FOR INITIALLY CONTAINING MATERIAL TO BE EXPELLED THEREFROM AND DUMPED IN SAID WELL BORE; RELEASABLE MEANS ARRANGED ON THE LOWER END OF THE LOWERMOST TELE-
Claim 2
Dependent Claim
51 words
A DUMP BAILER ADAPTED TO BE LOWERED IN A WELL BORE ON A WIRELINE COMPRISING A PLURALITY OF VERTICALLY EXTENSIBLE, COLLAPSIBLE, TELESCOPICALLY CONNECTED MEMBERS FORMING CHAMBERS FOR INITIALLY CONTAINING MATERIAL TO BE EXPELLED THEREFROM AND DUMPED IN SAID WELL BORE; RELEASABLE MEANS ARRANGED ON THE LOWER END OF THE LOWERMOST TELE-
References Cited (Backward Citations)
US2331631A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-05-20 | 1966-11-19 | 1967-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-20 | 1970-11-19 | 1971-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-20 | 1974-11-19 | 1975-05-21 | $7700.00 | Window Closed / Lapsed |