Patent US2777366A successfully refreshed from Google Patents.
US2777366A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas system for firearms
Assignee: Individual
•
Filing: 1953-04-22
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Granted: 1957-01-15
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Expires: 1973-04-22
Abstract
No abstract record available.
Inventors
- 👤 Loren C Cook
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 00:45
CPC Classifications
F; F41; F41A; F41A5/00; F41A5/18; F41A5/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
AT48141B
Cited
GB191009446A
Cited
US1066487A
Cited
US1233096A
Cited
US1338649A
Cited
US1846993A
Cited
US2355768A
Cited
US2454251A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-01-15 | 1960-07-16 | 1961-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-15 | 1964-07-16 | 1965-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-15 | 1968-07-16 | 1969-01-15 | $7700.00 | Window Closed / Lapsed |