Patent US3068036A successfully refreshed from Google Patents.
US3068036A
Expired / Lapsed
US
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Automatic pipe handling tongs
Assignee: Individual
•
Filing: 1960-09-22
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Granted: 1962-12-11
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Expires: 1980-09-22
Abstract
No abstract record available.
Inventors
- 👤 John T Doty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:37
CPC Classifications
F; F16; F16L; F16L1/00; F16L1/024; F16L1/06; B; B66; B66C; B66C1/00; B66C1/10; B66C1/42; B66C1/422
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US490211A
Cited
FR557140A
Cited
US2342506A
Cited
US2520815A
Cited
US2617678A
Cited
US2624611A
Cited
US3011821A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-10 | 1966-06-11 | 1966-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-10 | 1970-06-11 | 1970-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-10 | 1974-06-11 | 1974-12-11 | $7700.00 | Window Closed / Lapsed |