US3719149A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Two channel optical fuze with infrared sensing bridge
Assignee: United States Department of the Navy
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Filing: 1962-07-27
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Granted: 1973-03-06
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Expires: 1982-07-27
Abstract
Abstract THIS INVENTION ENTAILS A HIGH FREQUENCY BIAS TO AN INFRARED SENSING BRIDGE ARRANGEMENT. WHEN ENERGY IMPINGES ON EITHER SENSOR, THE BRIDGE BECOMES UNBALANCED, AND A SIGNAL IS SENT WHICH ACTIVATES A FUZE FIRING CIRCUIT.
Inventors
- 👤 G Masin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:09
CPC Classifications
F; F42; F42C; F42C13/00; F42C13/02
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) | 1976-03-05 | 1976-09-04 | 1977-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-05 | 1980-09-04 | 1981-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-05 | 1984-09-04 | 1985-03-06 | $7700.00 | Window Closed / Lapsed |