Patent US3141653A successfully refreshed from Google Patents.
US3141653A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oil well drilling structure
Assignee: Lee C Moore Corp
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Filing: 1963-03-11
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Granted: 1964-07-21
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Expires: 1983-03-11
Abstract
No abstract record available.
Inventors
- 👤 Jenkins Cecil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:47
CPC Classifications
E; E21; E21B; E21B15/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
169 words
IN AN OIL WELL DRILLING STRUCTURE, THE COMBINATION WITH A BASE, DRAWWORKS MOUNTED THEREON, A GIN POLE MOUNTED ON SAID BASE, A RECLINING MAST HINGED TO THE BASE IN FRONT OF THE GIN POLE AND EXTENDING FORWARD AWAY FROM IT, A LINE EXTENDING FROM THE DRAWWORKS UP OVER THE GIN POLE AND FORWARD TO THE FRONT END OF THE MAST AND THEN BACK INSIDE THE MAST, AND A PAIR OF LATERALLY SPACED SUBSTANTIALLY VERTICAL SHEAVES MOUNTED ON TOP OF THE GIN POLE; OF A PAIR OF PARALLEL UPPER AND LOWER TRAVELLING SHEAVES CARRIED BY SAID LINE INSIDE THE MAST, TWO LATERALLY SPACED PAIRS OF SUBSTANTIALLY VERTICAL SHEAVES MOUNTED IN THE UPPER PART OF THE RECLINING MAST BEHIND SAID TRAVELLING SHEAVES, AND TWO SLING LINES EXTENDING AROUND THE FRONT OF THE TRAVELLING SHEAVES AND BACK UNDER SAID MAST SHEAVES, ONE END OF ONE SLING BEING CONNECTED TO THE TOP OF THE GIN POLE NEAR ONE SIDE THEREOF AND THE OTHER END OF THAT SLING EXTENDING BACK UNDER THE GIN POLE
Claim 2
Dependent Claim
169 words
IN AN OIL WELL DRILLING STRUCTURE, THE COMBINATION WITH A BASE, DRAWWORKS MOUNTED THEREON, A GIN POLE MOUNTED ON SAID BASE, A RECLINING MAST HINGED TO THE BASE IN FRONT OF THE GIN POLE AND EXTENDING FORWARD AWAY FROM IT, A LINE EXTENDING FROM THE DRAWWORKS UP OVER THE GIN POLE AND FORWARD TO THE FRONT END OF THE MAST AND THEN BACK INSIDE THE MAST, AND A PAIR OF LATERALLY SPACED SUBSTANTIALLY VERTICAL SHEAVES MOUNTED ON TOP OF THE GIN POLE; OF A PAIR OF PARALLEL UPPER AND LOWER TRAVELLING SHEAVES CARRIED BY SAID LINE INSIDE THE MAST, TWO LATERALLY SPACED PAIRS OF SUBSTANTIALLY VERTICAL SHEAVES MOUNTED IN THE UPPER PART OF THE RECLINING MAST BEHIND SAID TRAVELLING SHEAVES, AND TWO SLING LINES EXTENDING AROUND THE FRONT OF THE TRAVELLING SHEAVES AND BACK UNDER SAID MAST SHEAVES, ONE END OF ONE SLING BEING CONNECTED TO THE TOP OF THE GIN POLE NEAR ONE SIDE THEREOF AND THE OTHER END OF THAT SLING EXTENDING BACK UNDER THE GIN POLE
References Cited (Backward Citations)
US2570901A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-07-21 | 1968-01-20 | 1968-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-21 | 1972-01-20 | 1972-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-21 | 1976-01-20 | 1976-07-21 | $7700.00 | Window Closed / Lapsed |