US2442899A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Choke attachment for gun barrels
Assignee: Individual
•
Filing: 1946-04-08
•
Granted: 1948-06-08
•
Expires: 1966-04-08
Abstract
No abstract record available.
Inventors
- 👤 William H Mcallister
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:00
CPC Classifications
F; F41; F41A; F41A21/00; F41A21/32; F41A21/40
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US559550A
Cited
US653613A
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US685669A
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US812140A
Cited
US1348750A
Cited
US1508605A
Cited
US1598360A
Cited
US1892522A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-06-08 | 1951-12-08 | 1952-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-06-08 | 1955-12-08 | 1956-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-06-08 | 1959-12-08 | 1960-06-08 | $7700.00 | Window Closed / Lapsed |