US2453369A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pipe tongs
Assignee: Individual
•
Filing: 1945-05-15
•
Granted: 1948-11-09
•
Expires: 1965-05-15
Abstract
No abstract record available.
Inventors
- 👤 Donovan B Grable
- 👤 John M Jackson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:14
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)
US586527A
Cited
US1417490A
Cited
US1615695A
Cited
US1634602A
Cited
US2000221A
Cited
US2311225A
Cited
US2263267A
Cited
US2332685A
Cited
US2351887A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-11-09 | 1952-05-10 | 1952-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-11-09 | 1956-05-10 | 1956-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-11-09 | 1960-05-10 | 1960-11-09 | $7700.00 | Window Closed / Lapsed |