US2879680A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Jaw operating means for power tongs
Assignee: Individual
•
Filing: 1957-12-09
•
Granted: 1959-03-31
•
Expires: 1977-12-09
Abstract
No abstract record available.
Inventors
- 👤 Archie W Beeman
- 👤 Clarence D New
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:37
CPC Classifications
E; E21; E21B; E21B19/00; E21B19/16; E21B19/161; E21B19/164
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2305624A
Cited
US2550045A
Cited
US2618468A
Cited
US2703221A
Cited
US2650070A
Cited
US2741460A
Cited
US2737839A
Cited
US2760392A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-30 | 1962-09-29 | 1963-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-30 | 1966-09-29 | 1967-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-30 | 1970-09-29 | 1971-03-31 | $7700.00 | Window Closed / Lapsed |