US2967446A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power operated, portable pipe wrench
Assignee: Individual
•
Filing: 1957-07-18
•
Granted: 1961-01-10
•
Expires: 1977-07-18
Abstract
No abstract record available.
Inventors
- 👤 Arthur E Martois
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 00:42
CPC Classifications
E; E21; E21B; E21B29/00; B; B23; B23D; B23D21/00; B23D21/06; B23D21/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1777084A
Cited
US1727225A
Cited
US2481024A
Cited
US2550045A
Cited
US2618468A
Cited
US2703221A
Cited
US2550963A
Cited
US2650070A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-01-10 | 1964-07-11 | 1965-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-10 | 1968-07-11 | 1969-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-10 | 1972-07-11 | 1973-01-10 | $7700.00 | Window Closed / Lapsed |