US2630987A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic control for aircraft
Assignee: Kollsman Instrument Corp
•
Filing: 1946-05-28
•
Granted: 1953-03-10
•
Expires: 1966-05-28
Abstract
No abstract record available.
Inventors
- 👤 Frederic F Hauptman
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; G05D1/0638
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2014965A
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US1351538A
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US1443982A
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US1816683A
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US2110622A
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US2191250A
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US2104627A
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US2323311A
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US2343288A
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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) | 1956-03-09 | 1956-09-08 | 1957-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-09 | 1960-09-08 | 1961-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-09 | 1964-09-08 | 1965-03-10 | $7700.00 | Window Closed / Lapsed |