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US2488080A
Expired / Lapsed
US
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Tong actuator
Assignee: Individual
•
Filing: 1945-03-09
•
Granted: 1949-11-15
•
Expires: 1965-03-09
Abstract
No abstract record available.
Inventors
- 👤 James H Edwards
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:44
CPC Classifications
E; E21; E21B; E21B19/00; E21B19/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE176788C
Cited
US295932A
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US1435154A
Cited
US1546217A
Cited
US1702822A
Cited
US2168209A
Cited
US2308823A
Cited
US2364901A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-11-14 | 1953-05-16 | 1953-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-11-14 | 1957-05-16 | 1957-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-11-14 | 1961-05-16 | 1961-11-15 | $7700.00 | Window Closed / Lapsed |