Patent US3072070A successfully refreshed from Google Patents.
US3072070A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thread locking device for a discharge connection of a submersible pump
Assignee: STA RITE PRODUCTS Inc
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Filing: 1958-12-04
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Granted: 1963-01-08
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Expires: 1978-12-04
Abstract
No abstract record available.
Inventors
- 👤 George L Marcell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 15:27
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/40; F04D29/406
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
IN A SUBMERSIBLE PUMP UNIT ADAPTED TO BE DISPOSED WITHIN A WELL CASING, A TUBULAR DISCHARGE CONNECTION COMMUNICATING WITH A DISCHARGE PIPE AND DISPOSED VERTICALLY WITHIN THE WELL CASING, AND HAVING AN EXTERNAL THREADED LOWER END, RECESS MEANS DISPOSED IN SAID CONNECTION ABOVE SAID THREADED LOWER END TO PROVIDE A HORIZONTAL LEDGE THEREABOVE, SAID THREADED LOWER END HAVING A CIRCUMFERENTIALLY EXTENDING SLOT DISPOSED BENEATH SAID LEDGE AND DEFINING IN COMBINATION WITH SAID LEDGE A DEFORMABLE
Claim 2
Dependent Claim
75 words
IN A SUBMERSIBLE PUMP UNIT ADAPTED TO BE DISPOSED WITHIN A WELL CASING, A TUBULAR DISCHARGE CONNECTION COMMUNICATING WITH A DISCHARGE PIPE AND DISPOSED VERTICALLY WITHIN THE WELL CASING, AND HAVING AN EXTERNAL THREADED LOWER END, RECESS MEANS DISPOSED IN SAID CONNECTION ABOVE SAID THREADED LOWER END TO PROVIDE A HORIZONTAL LEDGE THEREABOVE, SAID THREADED LOWER END HAVING A CIRCUMFERENTIALLY EXTENDING SLOT DISPOSED BENEATH SAID LEDGE AND DEFINING IN COMBINATION WITH SAID LEDGE A DEFORMABLE
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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) | 1966-01-07 | 1966-07-09 | 1967-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-07 | 1970-07-09 | 1971-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-07 | 1974-07-09 | 1975-01-08 | $7700.00 | Window Closed / Lapsed |