Patent US2457929A successfully refreshed from Google Patents.
US2457929A
Expired / Lapsed
US
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Safety attachment for shotguns
Assignee: Individual
•
Filing: 1946-02-05
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Granted: 1949-01-04
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Expires: 1966-02-05
Abstract
No abstract record available.
Inventors
- 👤 James E Slockbower
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 11:59
CPC Classifications
F; F41; F41A; F41A17/00; F41A17/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1305346A
Cited
US933135A
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US1074046A
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US1788246A
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US1898651A
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US2380140A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-01-04 | 1952-07-05 | 1953-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-01-04 | 1956-07-05 | 1957-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-01-04 | 1960-07-05 | 1961-01-04 | $7700.00 | Window Closed / Lapsed |