US2803170A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aircraft gun turret
Assignee: Glenn L Martin Co
•
Filing: 1951-02-13
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Granted: 1957-08-20
•
Expires: 1971-02-13
Abstract
No abstract record available.
Inventors
- 👤 Walter L Black
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:14
CPC Classifications
F; F41; F41A; F41A27/00; F41A27/06; F41A27/18; B; B64; B64D; B64D7/00; B64D7/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2446096A
Cited
US2454806A
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US2448704A
Cited
US2444300A
Cited
US2494368A
Cited
US2598231A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-08-19 | 1961-02-18 | 1961-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-19 | 1965-02-18 | 1965-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-19 | 1969-02-18 | 1969-08-20 | $7700.00 | Window Closed / Lapsed |