Patent US3354780A successfully refreshed from Google Patents.
US3354780A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Breech seal for firearms utilizing caseless ammunition
Assignee: Olin Corp
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Filing: 1966-03-28
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Granted: 1967-11-28
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Expires: 1986-03-28
Abstract
No abstract record available.
Inventors
- 👤 Ramsay Marcus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 04:50
CPC Classifications
F; F41; F41A; F41A3/00; F41A3/64; F41A3/74
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
IN A FIREARM OF THE TYPE UTILIZING CASELESS AMMUNITION, A BREECH GAS SEAL DEVICE COMPRISING IN COMBINATION A BARREL HAVING A BORE FOR RECEIVING AND CHAMBERING A ROUND OF CASELESS AMMUNITION, A COOPERATING BREECH BOLT OPERATIVE TO CLOSE THE BORE, AND A BELLEVILLE TYPE WASHER SANDWICHED BETWEEN THE BREECH BOLT AND THE BORE SO THAT WHEN THE BREECH BOLT IS MOVED TOWARDS A CHAMBER CLOSING POSITION THE WASHER IS DEFLECTED.
Claim 2
Dependent Claim
70 words
IN A FIREARM OF THE TYPE UTILIZING CASELESS AMMUNITION, A BREECH GAS SEAL DEVICE COMPRISING IN COMBINATION A BARREL HAVING A BORE FOR RECEIVING AND CHAMBERING A ROUND OF CASELESS AMMUNITION, A COOPERATING BREECH BOLT OPERATIVE TO CLOSE THE BORE, AND A BELLEVILLE TYPE WASHER SANDWICHED BETWEEN THE BREECH BOLT AND THE BORE SO THAT WHEN THE BREECH BOLT IS MOVED TOWARDS A CHAMBER CLOSING POSITION THE WASHER IS DEFLECTED.
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) | 1970-11-27 | 1971-05-29 | 1971-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-27 | 1975-05-29 | 1975-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-27 | 1979-05-29 | 1979-11-28 | $7700.00 | Window Closed / Lapsed |