Patent US2851927A successfully refreshed from Google Patents.
US2851927A
Expired / Lapsed
US
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Machine guns with two section firing chambers
Assignee: AIRTEK DYNAMICS Inc
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Filing: 1956-01-27
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Granted: 1958-09-16
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Expires: 1976-01-27
Abstract
No abstract record available.
Inventors
- 👤 William G Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:22
CPC Classifications
F; F41; F41A; F41A21/00; F41A21/12; F41A9/00; F41A9/38; F41A9/46; F42; F42B; F42B5/00; F42B5/02; F42B5/045
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) | 1961-09-15 | 1962-03-17 | 1962-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-15 | 1966-03-17 | 1966-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-15 | 1970-03-17 | 1970-09-16 | $7700.00 | Window Closed / Lapsed |