Patent US3261264A successfully refreshed from Google Patents.
US3261264A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas operated firearm
Assignee: Individual
•
Filing: 1965-02-10
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Granted: 1966-07-19
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Expires: 1985-02-10
Abstract
No abstract record available.
Inventors
- 👤 Curtis L Wilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 00:10
CPC Classifications
F; F41; F41A; F41A5/00; F41A5/18; F41A5/20; F41A3/00; F41A3/62
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
IN COMBINATION WITH A FIREARM INCLUDING A CASING, A BARREL HAVING A LONGITUDINAL BORE SECURED AXIALLY IN SAID CASING THERE BEING A FIRING CHAMBER IN THE BREECH END OF SAID BARREL AND A MEANS FOR FEEDING CARTRIDGE TO SAID FIRING CHAMBER; A BOLT MECHANISM SLIDABLY MOUNTED IN SAID CASING, SAID BOLT MECHANSIM HAVING FIRST AND SECOND AREA THEREIN, THERE BEING A SERIES OF PORTS IN SAID BARREL AND BEING IN COMMUNICATION WITH EACH SAID AREA WHEREBY WHEN A CARTRIDGE IS FIRED FROM SAID FIRING CHAMBER, GAS PRESSURE GENERATED THEREBY WILL ENTER SAID FIRST AREA TO HOLD SAID BOLT MECHANSIM IN A POSITION TO OBTURATE SAID BREECH END OF SAID BARREL AN THEN INTO SAID SECOND AREA TO MOVE SAID BREECH MECHANISM TO A RECYCLING POSITION.
Claim 2
Dependent Claim
125 words
IN COMBINATION WITH A FIREARM INCLUDING A CASING, A BARREL HAVING A LONGITUDINAL BORE SECURED AXIALLY IN SAID CASING THERE BEING A FIRING CHAMBER IN THE BREECH END OF SAID BARREL AND A MEANS FOR FEEDING CARTRIDGE TO SAID FIRING CHAMBER; A BOLT MECHANISM SLIDABLY MOUNTED IN SAID CASING, SAID BOLT MECHANSIM HAVING FIRST AND SECOND AREA THEREIN, THERE BEING A SERIES OF PORTS IN SAID BARREL AND BEING IN COMMUNICATION WITH EACH SAID AREA WHEREBY WHEN A CARTRIDGE IS FIRED FROM SAID FIRING CHAMBER, GAS PRESSURE GENERATED THEREBY WILL ENTER SAID FIRST AREA TO HOLD SAID BOLT MECHANSIM IN A POSITION TO OBTURATE SAID BREECH END OF SAID BARREL AN THEN INTO SAID SECOND AREA TO MOVE SAID BREECH MECHANISM TO A RECYCLING POSITION.
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) | 1969-07-18 | 1970-01-17 | 1970-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-18 | 1974-01-17 | 1974-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-18 | 1978-01-17 | 1978-07-19 | $7700.00 | Window Closed / Lapsed |