US3335987A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable oil well mast support
Assignee: Lee C Moore Corp
•
Filing: 1966-08-01
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Granted: 1967-08-15
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Expires: 1986-08-01
Abstract
No abstract record available.
Inventors
- 👤 Homer J Woolslayer
- 👤 Jenkins Cecil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 05:43
CPC Classifications
E; E21; E21B; E21B15/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
AN ADJUSTABLE OIL WELL MAST SUPPORT COMPRISING A SUBSTRUCTURE, SHOES ON THE SUBSTRUCTURE FOR THE FEET OF A MAST, A CENTRAL STEM EXTENDING DOWN FROM THE BOTTOM OF EACH SHOE, THE SUBSTRUCTURE BEING PROVIDED WITH VERTICAL PASSAGES SLIDABLY RECEIVING THE STEMS, MEANS HOLDING THE SHOES IN PLACE, SAID STEMS BEING ELEVATABLE IN SAID PASSAGES TO RAISE THE SHOES ABOVE THE SUBSTRUCTURE AFTER SAID MEANS HAVE BEEN LOOSENED, WHEREBY SHIMS CAN BE PLACED BETWEEN THE SHOES AND THE SUBSTRUCTURE TO SUPPORT THE RAISED SHOES.
Claim 2
Dependent Claim
83 words
AN ADJUSTABLE OIL WELL MAST SUPPORT COMPRISING A SUBSTRUCTURE, SHOES ON THE SUBSTRUCTURE FOR THE FEET OF A MAST, A CENTRAL STEM EXTENDING DOWN FROM THE BOTTOM OF EACH SHOE, THE SUBSTRUCTURE BEING PROVIDED WITH VERTICAL PASSAGES SLIDABLY RECEIVING THE STEMS, MEANS HOLDING THE SHOES IN PLACE, SAID STEMS BEING ELEVATABLE IN SAID PASSAGES TO RAISE THE SHOES ABOVE THE SUBSTRUCTURE AFTER SAID MEANS HAVE BEEN LOOSENED, WHEREBY SHIMS CAN BE PLACED BETWEEN THE SHOES AND THE SUBSTRUCTURE TO SUPPORT THE RAISED SHOES.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-08-14 | 1971-02-13 | 1971-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-14 | 1975-02-13 | 1975-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-14 | 1979-02-13 | 1979-08-15 | $7700.00 | Window Closed / Lapsed |