Patent US2961954A successfully refreshed from Google Patents.
US2961954A
Expired / Lapsed
US
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Depth charge firing mechanism
Assignee: Individual
•
Filing: 1943-02-01
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Granted: 1960-11-29
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Expires: 1963-02-01
Abstract
No abstract record available.
Inventors
- 👤 Harry H Moore
- 👤 Richard H F Stresau
- 👤 Carl A Axelson
- 👤 David M Stearns
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 10:13
CPC Classifications
F; F42; F42C; F42C9/00; F42C9/14; F42C9/148; F42C14/00; F42C14/04; F42C14/045; F42C15/00; F42C15/18; F42C15/184
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US571739A
Cited
US1314664A
Cited
US1172636A
Cited
US1368569A
Cited
US1336391A
Cited
US1617674A
Cited
US2399523A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-29 | 1964-05-30 | 1964-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-29 | 1968-05-30 | 1968-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-29 | 1972-05-30 | 1972-11-29 | $7700.00 | Window Closed / Lapsed |