US3021807A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Homing system for torpedo
Assignee: Individual
•
Filing: 1946-05-01
•
Granted: 1962-02-20
•
Expires: 1966-05-01
Abstract
No abstract record available.
Inventors
- 👤 Cecil K Stedman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:51
CPC Classifications
F; F41; F41G; F41G7/00; F42; F42B; F42B19/00; F42B19/01; Y; Y10; Y10S; Y10S367/00; Y10S367/901
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1892431A
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US2176469A
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US2262931A
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US2349370A
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US2382058A
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US2409632A
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US2416155A
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US2408395A
Cited
US2420016A
Cited
US2431854A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-19 | 1965-08-21 | 1966-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-19 | 1969-08-21 | 1970-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-19 | 1973-08-21 | 1974-02-20 | $7700.00 | Window Closed / Lapsed |