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Patent US2943482A successfully refreshed from Google Patents.
US2943482A
Expired / Lapsed
US
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Flight director aircraft instrument
Assignee: Collins Radio Co
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Filing: 1956-10-23
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Granted: 1960-07-05
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Expires: 1976-10-23
Abstract
No abstract record available.
Inventors
- 👤 Edgar H Fritze
- 👤 Horst M Schweighofer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:46
CPC Classifications
B; B64; B64D; B64D45/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2567212A
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US2613352A
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US2696597A
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US2823378A
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US2782395A
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US2732550A
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US2737640A
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US2796594A
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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) | 1963-07-05 | 1964-01-04 | 1964-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-05 | 1968-01-04 | 1968-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-05 | 1972-01-04 | 1972-07-05 | $7700.00 | Window Closed / Lapsed |