US2795057A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Target image projector for gunnery trainers
Assignee: Glenn L Martin Co
•
Filing: 1952-05-09
•
Granted: 1957-06-11
•
Expires: 1972-05-09
Abstract
No abstract record available.
Inventors
- 👤 Sohn Harry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:24
CPC Classifications
F; F41; F41G; F41G3/00; F41G3/26; F41G3/2616; F41G3/2694
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2420316A
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DE300602C
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FR473646A
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GB506822A
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US2335257A
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GB556069A
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US2387153A
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GB586870A
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US2381757A
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US2420633A
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US2401975A
Cited
US2536718A
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US2593117A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-06-10 | 1960-12-10 | 1961-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-06-10 | 1964-12-10 | 1965-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-06-10 | 1968-12-10 | 1969-06-11 | $7700.00 | Window Closed / Lapsed |