US2933799A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing controlled fragmentation warheads
Assignee: Individual
•
Filing: 1957-05-16
•
Granted: 1960-04-26
•
Expires: 1977-05-16
Abstract
No abstract record available.
Inventors
- 👤 Howard W Semon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:18
CPC Classifications
B; B21; B21K; B21K23/00; B21C; B21C37/00; B21C37/06; B21C37/12; B21C37/122; F; F42; F42B; F42B12/00; F42B12/02; F42B12/20; F42B12/22; F42B12/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1170676A
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US1203062A
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US1942304A
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US2375661A
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US2458576A
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US2382277A
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US2552109A
Cited
US2652623A
Cited
US2654124A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-26 | 1963-10-26 | 1964-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-26 | 1967-10-26 | 1968-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-26 | 1971-10-26 | 1972-04-26 | $7700.00 | Window Closed / Lapsed |