Patent US2415804A successfully refreshed from Google Patents.
US2415804A
Expired / Lapsed
US
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Fuse for antiaircraft shells
Assignee: Individual
•
Filing: 1943-05-10
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Granted: 1947-02-18
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Expires: 1963-05-10
Abstract
No abstract record available.
Inventors
- 👤 Philip W Allison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:41
CPC Classifications
F; F42; F42C; F42C15/00; F42C15/28; F42C15/295
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1309771A
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US1320991A
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US880818A
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US1000862A
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US1486593A
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US1549763A
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US1681390A
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US1596224A
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US1817503A
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FR749464A
Cited
GB473282A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-02-17 | 1950-08-19 | 1951-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-02-17 | 1954-08-19 | 1955-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-02-17 | 1958-08-19 | 1959-02-18 | $7700.00 | Window Closed / Lapsed |