Patent US3281965A successfully refreshed from Google Patents.
US3281965A
Expired / Lapsed
US
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Controlled visibility device for an aircraft
Assignee: Individual
•
Filing: 1965-08-02
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Granted: 1966-11-01
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Expires: 1985-08-02
Abstract
No abstract record available.
Inventors
- 👤 Kirk S Irwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:19
CPC Classifications
B; B64; B64C; B64C1/00; B64C1/14; B64C1/1476
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2090132A
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US2510848A
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US2403195A
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US2368117A
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US2417317A
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US2440274A
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US2492969A
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US2842868A
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US3015988A
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US3001300A
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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) | 1969-10-31 | 1970-05-02 | 1970-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-31 | 1974-05-02 | 1974-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-31 | 1978-05-02 | 1978-11-01 | $7700.00 | Window Closed / Lapsed |