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US3015273A
Expired / Lapsed
US
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Magnetic mine firing control mechanism
Assignee: Individual
•
Filing: 1942-04-06
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Granted: 1962-01-02
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Expires: 1962-04-06
Abstract
No abstract record available.
Inventors
- 👤 Robert H Park
- 👤 Seymour J Sindeband
- 👤 Edward S Gilfillan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:22
CPC Classifications
F; F42; F42C; F42C13/00; F42C13/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US542732A
Cited
US571739A
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US1310568A
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US1382374A
Cited
GB130350A
Cited
US1538316A
Cited
US1491004A
Cited
US1364615A
Cited
FR803907A
Cited
US2238072A
Cited
US2399523A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-01-01 | 1965-07-03 | 1966-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-01 | 1969-07-03 | 1970-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-01 | 1973-07-03 | 1974-01-02 | $7700.00 | Window Closed / Lapsed |