Patent US1878038A successfully refreshed from Google Patents.
US1878038A
Expired / Lapsed
US
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Sliding cover for automatic firearms
Assignee: Individual
•
Filing: 1930-10-27
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Granted: 1932-09-20
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Expires: 1950-10-27
Abstract
No abstract record available.
Inventors
- 👤 Frommer Rudolf Von
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:00
CPC Classifications
H; H01; H01G; H01G4/00; H01G4/002; H01G4/224; F; F41; F41A; F41A35/00; F41A35/02; F41C; F41C23/00; F41C23/16; H04; H04M; H04M3/00; H04M3/60; H04M3/64
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1935-09-20 | 1936-03-21 | 1936-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1939-09-20 | 1940-03-21 | 1940-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1943-09-20 | 1944-03-21 | 1944-09-20 | $7700.00 | Window Closed / Lapsed |