Patent US2545474A successfully refreshed from Google Patents.
US2545474A
Expired / Lapsed
US
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Delayed detonating means for projectiles
Assignee: Individual
•
Filing: 1943-08-12
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Granted: 1951-03-20
•
Expires: 1963-08-12
Abstract
No abstract record available.
Inventors
- 👤 Jerome J Kurland
- 👤 Joseph J Kurland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:11
CPC Classifications
F; F42; F42C; F42C11/00; F42C11/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1623475A
Cited
US1791606A
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US1795972A
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US1907279A
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US1807708A
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DE530348C
Cited
DE581491C
Cited
US1917813A
Cited
US1917814A
Cited
DE582582C
Cited
FR864373A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-03-19 | 1954-09-18 | 1955-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-03-19 | 1958-09-18 | 1959-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-03-19 | 1962-09-18 | 1963-03-20 | $7700.00 | Window Closed / Lapsed |