US2787342A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Trailer mounted drilling rigs
Assignee: Lee C Moore Corp
•
Filing: 1954-01-07
•
Granted: 1957-04-02
•
Expires: 1974-01-07
Abstract
No abstract record available.
Inventors
- 👤 Jenkins Cecil
- 👤 Calvin L Turner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:14
CPC Classifications
E; E21; E21B; E21B7/00; E21B7/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1697940A
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US2229653A
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US2271578A
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US2300763A
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US2335584A
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US2360654A
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US2403080A
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US2551286A
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US2617500A
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US2663375A
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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) | 1960-04-01 | 1960-10-01 | 1961-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-04-01 | 1964-10-01 | 1965-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-04-01 | 1968-10-01 | 1969-04-02 | $7700.00 | Window Closed / Lapsed |