US2737889A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Incendiary shell
Assignee: Individual
•
Filing: 1941-06-20
•
Granted: 1956-03-13
•
Expires: 1961-06-20
Abstract
No abstract record available.
Inventors
- 👤 Maurice E Barker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:42
CPC Classifications
F; F42; F42B; F42B12/00; F42B12/02; F42B12/36; F42B12/44
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1435228A
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US1175800A
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US1376316A
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US1434681A
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US1374854A
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US1484190A
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US1517554A
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US1605655A
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US1756079A
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US2094305A
Cited
US2068159A
Cited
US2055020A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-03-13 | 1959-09-12 | 1960-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-03-13 | 1963-09-12 | 1964-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-03-13 | 1967-09-12 | 1968-03-13 | $7700.00 | Window Closed / Lapsed |