US2520443A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Planetary gear speed wrench
Assignee: Individual
•
Filing: 1946-10-14
•
Granted: 1950-08-29
•
Expires: 1966-10-14
Abstract
No abstract record available.
Inventors
- 👤 Albert L Seaquist
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:59
CPC Classifications
B; B25; B25B; B25B17/00; Y; Y10; Y10T; Y10T74/00; Y10T74/15; Y10T74/1526; Y10T74/1553; Y10T74/1555
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US66229A
Cited
US268284A
Cited
US484231A
Cited
US1417503A
Cited
US1626719A
Cited
US1721612A
Cited
US1762515A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-08-28 | 1954-02-27 | 1954-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-08-28 | 1958-02-27 | 1958-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-08-28 | 1962-02-27 | 1962-08-29 | $7700.00 | Window Closed / Lapsed |