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Patent US2462851A successfully refreshed from Google Patents.
US2462851A
Expired / Lapsed
US
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Steel cartridge case manufacture
Assignee: Individual
•
Filing: 1945-05-02
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Granted: 1949-03-01
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Expires: 1965-05-02
Abstract
No abstract record available.
Inventors
- 👤 Cecil C Fawcett
- 👤 Gerald E Hirt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:10
CPC Classifications
B; B21; B21D; B21D51/00; B21D51/16; B21D51/54
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-02-29 | 1952-08-30 | 1953-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-02-29 | 1956-08-30 | 1957-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-02-29 | 1960-08-30 | 1961-03-01 | $7700.00 | Window Closed / Lapsed |