Patent US2050871A successfully refreshed from Google Patents.
US2050871A
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US
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Flashless powder charge
Assignee: EIDP Inc
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Filing: 1934-02-01
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Granted: 1936-08-11
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Expires: 1954-02-01
Abstract
No abstract record available.
Inventors
- 👤 Richard G Woodbridge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:52
CPC Classifications
F; F42; F42B; F42B5/00; F42B5/02; F42B5/16; C; C06; C06B; C06B23/00; C06B23/02; C06B45/00; C06B45/18; F42B1/00
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) | 1939-08-11 | 1940-02-10 | 1940-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-08-11 | 1944-02-10 | 1944-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-08-11 | 1948-02-10 | 1948-08-11 | $7700.00 | Window Closed / Lapsed |