Patent US4109654A successfully refreshed from Google Patents.
US2875965A
Expired / Lapsed
US
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Automatic flight control system
Assignee: Collins Radio Co
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Filing: 1954-06-18
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Granted: 1959-03-03
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Expires: 1974-06-18
Abstract
No abstract record available.
Inventors
- 👤 William G Anderson
- 👤 Theodore R Willis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:17
CPC Classifications
G; G05; G05D; G05D1/00; G05D1/04; G05D1/06; G05D1/0607; G05D1/0615; G05D1/063
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2507304A
Cited
US2630987A
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US2627384A
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US2672334A
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US2677513A
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US2701111A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-02 | 1962-09-01 | 1963-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-02 | 1966-09-01 | 1967-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-02 | 1970-09-01 | 1971-03-03 | $7700.00 | Window Closed / Lapsed |