Patent US2512850A successfully refreshed from Google Patents.
US2512850A
Expired / Lapsed
US
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Pattern control means for shotguns
Assignee: Individual
•
Filing: 1947-09-05
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Granted: 1950-06-27
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Expires: 1967-09-05
Abstract
No abstract record available.
Inventors
- 👤 Crandall Gladstone Blake
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:32
CPC Classifications
F; F41; F41A; F41A21/00; F41A21/32; F41A21/40
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US85949A
Cited
US618901A
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US1598360A
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US2115028A
Cited
US2098617A
Cited
US2428232A
Cited
US2442899A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-06-26 | 1953-12-26 | 1954-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-06-26 | 1957-12-26 | 1958-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-06-26 | 1961-12-26 | 1962-06-27 | $7700.00 | Window Closed / Lapsed |