Patent US3287776A successfully refreshed from Google Patents.
US3287776A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple string manual operated elevator
Assignee: Individual
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Filing: 1964-01-13
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Granted: 1966-11-29
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Expires: 1984-01-13
Abstract
No abstract record available.
Inventors
- 👤 Cicero C Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:21
CPC Classifications
E; E21; E21B; E21B19/00; E21B19/02; E21B19/06; E21B19/07
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
AN ELEVATOR DEVICE FOR HANDLING AT LEAST THREE WELL PIPES, INCLUDING A BODY HAVING A CENTRAL PORTION, A FIRST JAW MEMBER DISPOSED ON ONE SIDE OF THE BODY, MEANS PIVOTALLY SECURING ONE END OF SAID FIRST JAW MEMBER TO THE BODY AT A POINT OFFSET FROM SAID CENTRAL PORTION TO PERMIT SWINGING OF SAID FIRST JAW MEMBER TOWARD AND AWAY FROM SAID BODY, A SECOND JAW MEMBER DISPOSED ON THAT SIDE OF THE BODY OPPOSITE THE SIDE ON WHICH SAID FIRST JAW MEMBER IS LOCATED, MEANS PIVOTALLY SECURING ONE END OF THE SECOND JAW MEMBER TO THE BODY AT A POINT OFFSET FROM SAID CENTRAL PORTION TO PERMIT SWINGING OF SAID SECOND JAW MEMBER TOWARD AND AWAY FROM SAID BODY, MEANS FOR RELEASABLY LATCHING THE FREE END OF SAID FIRST JAW MEMBER TO THE BODY TO SECURE SAID FIRST JAW MEMBER IN POSITION ADJACENT SAID BODY,
Claim 2
Dependent Claim
146 words
AN ELEVATOR DEVICE FOR HANDLING AT LEAST THREE WELL PIPES, INCLUDING A BODY HAVING A CENTRAL PORTION, A FIRST JAW MEMBER DISPOSED ON ONE SIDE OF THE BODY, MEANS PIVOTALLY SECURING ONE END OF SAID FIRST JAW MEMBER TO THE BODY AT A POINT OFFSET FROM SAID CENTRAL PORTION TO PERMIT SWINGING OF SAID FIRST JAW MEMBER TOWARD AND AWAY FROM SAID BODY, A SECOND JAW MEMBER DISPOSED ON THAT SIDE OF THE BODY OPPOSITE THE SIDE ON WHICH SAID FIRST JAW MEMBER IS LOCATED, MEANS PIVOTALLY SECURING ONE END OF THE SECOND JAW MEMBER TO THE BODY AT A POINT OFFSET FROM SAID CENTRAL PORTION TO PERMIT SWINGING OF SAID SECOND JAW MEMBER TOWARD AND AWAY FROM SAID BODY, MEANS FOR RELEASABLY LATCHING THE FREE END OF SAID FIRST JAW MEMBER TO THE BODY TO SECURE SAID FIRST JAW MEMBER IN POSITION ADJACENT SAID BODY,
References Cited (Backward Citations)
US534345A
Cited
US1150870A
Cited
GB218823A
Cited
US1706214A
Cited
US1731128A
Cited
US1844379A
Cited
US3096075A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-28 | 1970-05-30 | 1970-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-28 | 1974-05-30 | 1974-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-28 | 1978-05-30 | 1978-11-29 | $7700.00 | Window Closed / Lapsed |