US3298282A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Buffer systems for automatic firearms
Assignee: Rheinmetall Industrie AG
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Filing: 1965-02-16
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Granted: 1967-01-17
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Expires: 1985-02-16
Abstract
No abstract record available.
Inventors
- 👤 Loffler Theodor
- 👤 Harbrecht Karl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:28
CPC Classifications
F; F41; F41A; F41A25/00; F41A25/16; F41A25/18; F41A3/00; F41A3/64; F41A3/78; F41A3/90; F41A3/94
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
138 words
AN AUTOMATIC FIREARM COMPRISING A CASING, A BREECH CARRIER MOUNTED IN SAID CASING AND HAVING A TUBE-LIKE EXTENSION AND A CYLINDRICAL RECESS, A GUIDE TUBE SECURED AT ONE END IN THE CASING AND EXTENDING THROUGH THE CYLINDRICAL RECESS AND INTO THE TUBE-LIKE EXTENSION, A PISTON HEAD MOUNTED TO SLIDE IN THE TUBE-LIKE EXTENSION AND SECURED AT THE OTHER END IN THE GUIDE TUBE, A SUPPORTING RING ABUTTING ON A SHOULDER AT THE JUNCTION OF THE CYLINDRICAL RECESS AND THE TUBE-LIKE EXTENSION TO SUPPORT THE GUIDE TUBE AT ITS OTHER END, AND A COIL SPRING AROUND THE GUIDE TUBE BEARING AT ONE END AGAINST THE CASING AND THE OTHER END AGAINST THE SUPPORTING RING, THE GUIDE TUBE FORMING SIMULTANEOUSLY A PISTON RODFOR A PNEUMATIC BUFFER WITH THE TUBE-LIKE EXTENSION AND THE PISTON HEAD THEREIN SECURED TO THE GUIDE TUBE.
Claim 2
Dependent Claim
138 words
AN AUTOMATIC FIREARM COMPRISING A CASING, A BREECH CARRIER MOUNTED IN SAID CASING AND HAVING A TUBE-LIKE EXTENSION AND A CYLINDRICAL RECESS, A GUIDE TUBE SECURED AT ONE END IN THE CASING AND EXTENDING THROUGH THE CYLINDRICAL RECESS AND INTO THE TUBE-LIKE EXTENSION, A PISTON HEAD MOUNTED TO SLIDE IN THE TUBE-LIKE EXTENSION AND SECURED AT THE OTHER END IN THE GUIDE TUBE, A SUPPORTING RING ABUTTING ON A SHOULDER AT THE JUNCTION OF THE CYLINDRICAL RECESS AND THE TUBE-LIKE EXTENSION TO SUPPORT THE GUIDE TUBE AT ITS OTHER END, AND A COIL SPRING AROUND THE GUIDE TUBE BEARING AT ONE END AGAINST THE CASING AND THE OTHER END AGAINST THE SUPPORTING RING, THE GUIDE TUBE FORMING SIMULTANEOUSLY A PISTON RODFOR A PNEUMATIC BUFFER WITH THE TUBE-LIKE EXTENSION AND THE PISTON HEAD THEREIN SECURED TO THE GUIDE TUBE.
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) | 1970-01-16 | 1970-07-18 | 1971-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-16 | 1974-07-18 | 1975-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-16 | 1978-07-18 | 1979-01-17 | $7700.00 | Window Closed / Lapsed |