Patent US2646966A successfully refreshed from Google Patents.
US2646966A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power-operated wrench
Assignee: Individual
•
Filing: 1951-12-11
•
Granted: 1953-07-28
•
Expires: 1971-12-11
Abstract
No abstract record available.
Inventors
- 👤 Glenn A Lindberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:40
CPC Classifications
E; E21; E21B; E21B19/00; E21B19/16
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1300995A
Cited
US1820545A
Cited
US1831259A
Cited
US2000221A
Cited
US2425793A
Cited
US2514914A
Cited
US2550045A
Cited
US2573212A
Cited
US2566561A
Cited
US2556536A
Cited
US2624550A
Cited
US2566999A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-07-27 | 1957-01-26 | 1957-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-27 | 1961-01-26 | 1961-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-27 | 1965-01-26 | 1965-07-28 | $7700.00 | Window Closed / Lapsed |