US2961955A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Depth charge arming device
Assignee: Individual
•
Filing: 1946-02-11
•
Granted: 1960-11-29
•
Expires: 1966-02-11
Abstract
No abstract record available.
Inventors
- 👤 Waldron S Macdonald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:52
CPC Classifications
F; F42; F42C; F42C14/00; F42C14/04; F42C14/045; F42C15/00; F42C15/18; F42C15/188
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR442772A
Cited
US1368569A
Cited
DE334992C
Cited
GB257335A
Cited
US1670080A
Cited
US1780592A
Cited
GB336080A
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 |