Patent US3202454A successfully refreshed from Google Patents.
Patent US3619929A successfully refreshed from Google Patents.
US3619929A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magazine with anti-double-feed indentations in the side walls
Assignee: Colt Industries Inc
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Filing: 1969-03-13
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Granted: 1971-11-16
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Expires: 1989-03-13
Abstract
Abstract A FIREARM MAGAZINE FOR STORING AND FEEDING A STAGGERED DOUBLE COLUMN STACK OF CARTRIDGES AND HAVING A BODY AND A PROTRUSION DIRECTED INWARDLY FROM EACH SIDE WALL OF THE BODY ADJACENT BUT BELOW A TOP EDGE OF A FRONT WALL THEREOF TO INTENTINALLY MISALIGN THAT CARTRIDGE FOLLOWING THE UPPERMOST CARTRIDGE INTO NESTING LINE CONTACT ENGAGEMENT WITH ADJACENT CARTRIDGE CASINGS IN THE OPPOSITE COLUMN TO ENSURE AUTOMATIC ALIGNMENT OF THE UPPERMOST CARTRIDGE IN FEEDING POSITION WHILE AT THE SAME TIME MAINTAINING THE FOLLOWING CARTRIDGE IN INTERFERING CONFRONTING RELATION TO THE FRONT WALL OF THE MAGAZINE BODY.
Inventors
- 👤 Robert D Fremont
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 09:39
CPC Classifications
F; F41; F41A; F41A9/00; F41A9/61; F41A9/64; F41A9/65; F41A9/69
Claims Analysis
Total Claims: 0
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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) | 1974-11-15 | 1975-05-17 | 1975-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-15 | 1979-05-17 | 1979-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-15 | 1983-05-17 | 1983-11-16 | $7700.00 | Window Closed / Lapsed |