US3372641A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure retention chamber for smoke marker grenade
Assignee: United States Department of the Army
•
Filing: 1966-10-19
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Granted: 1968-03-12
•
Expires: 1986-10-19
Abstract
No abstract record available.
Inventors
- 👤 Foster John Edward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:48
CPC Classifications
F; F42; F42B; F42B12/00; F42B12/02; F42B12/36; F42B12/46; F42B12/50; F42B27/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2094561A
Cited
US2042461A
Cited
US2340329A
Cited
US2328916A
Cited
US2396064A
Cited
US2959127A
Cited
US3081702A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-03-12 | 1971-09-11 | 1972-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-12 | 1975-09-11 | 1976-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-12 | 1979-09-11 | 1980-03-12 | $7700.00 | Window Closed / Lapsed |