US2531400A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gunnery practice range control device
Assignee: Individual
•
Filing: 1945-12-27
•
Granted: 1950-11-28
•
Expires: 1965-12-27
Abstract
No abstract record available.
Inventors
- 👤 Jr Clarence W Clarkson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:16
CPC Classifications
F; F41; F41G; F41G3/00; F41G3/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1313685A
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US684105A
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US1865828A
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US1939706A
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US2224564A
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US2373313A
Cited
US2387153A
Cited
US2428432A
Cited
US2364070A
Cited
US2387749A
Cited
US2457832A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-11-27 | 1954-05-29 | 1954-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-27 | 1958-05-29 | 1958-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-27 | 1962-05-29 | 1962-11-28 | $7700.00 | Window Closed / Lapsed |