Patent US3725873A successfully refreshed from Google Patents.
US2002016A
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Tool for inserting valve lock washers or keepers
Assignee: AIRCRAFT SPECIALTIES Inc
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Filing: 1932-05-04
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Granted: 1935-05-21
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Expires: 1952-05-04
Abstract
No abstract record available.
Inventors
- 👤 Kyser Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:22
CPC Classifications
B; B25; B25B; B25B27/00; B25B27/14; B25B27/24; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/53796; Y10T29/53817
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1938-05-20 | 1938-11-19 | 1939-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1942-05-20 | 1942-11-19 | 1943-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1946-05-20 | 1946-11-19 | 1947-05-21 | $7700.00 | Window Closed / Lapsed |