Patent US4496383A successfully refreshed from Google Patents.
Patent US2898693A successfully refreshed from Google Patents.
US2898693A
Expired / Lapsed
US
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22 caliber conversion for a colt 45 caliber semi-automatic pistol
Assignee: Sturm Ruger and Co Inc
•
Filing: 1956-04-17
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Granted: 1959-08-11
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Expires: 1976-04-17
Abstract
No abstract record available.
Inventors
- 👤 William B Ruger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:59
CPC Classifications
F; F41; F41A; F41A11/00; F41A11/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2090657A
Cited
US2655839A
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US2495428A
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US2688203A
Cited
US2659994A
Cited
US2667712A
Cited
US2736117A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-10 | 1963-02-09 | 1963-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-10 | 1967-02-09 | 1967-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-10 | 1971-02-09 | 1971-08-11 | $7700.00 | Window Closed / Lapsed |