US3390692A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pneumatic signal generator
Assignee: United States Department of the Army
•
Filing: 1965-05-25
•
Granted: 1968-07-02
•
Expires: 1985-05-25
Abstract
No abstract record available.
Inventors
- 👤 Edgar G Hastie
- 👤 Richard N Gottron
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:57
CPC Classifications
F; F15; F15C; F15C1/00; F15C1/02; F15C1/04; Y; Y10; Y10T; Y10T137/00; Y10T137/206; Y10T137/218; Y10T137/2191; Y10T137/2196; Y10T137/2267
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2894123A
Cited
US3100886A
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US3121169A
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US3144037A
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US3122062A
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US3182686A
Cited
US3158166A
Cited
US3187762A
Cited
US3269419A
Cited
US3266511A
Cited
US3275015A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-07-02 | 1972-01-01 | 1972-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-02 | 1976-01-01 | 1976-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-02 | 1980-01-01 | 1980-07-02 | $7700.00 | Window Closed / Lapsed |