Patent US2055443A successfully refreshed from Google Patents.
Patent US2930545A successfully refreshed from Google Patents.
US2930545A
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Automatic celestial navigation control system
Assignee: GEN SCIENT PROJECTS Inc
•
Filing: 1956-01-23
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Granted: 1960-03-29
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Expires: 1976-01-23
Abstract
No abstract record available.
Inventors
- 👤 Robert E Houle
- 👤 Donald H Menzel
- 👤 Edward J Robb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:39
CPC Classifications
G; G01; G01S; G01S3/00; G01S3/78; G01S3/782
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2039878A
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US2077398A
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US2316466A
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US2471686A
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US2444933A
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US2532402A
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US2492148A
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US2762123A
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US2688896A
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US2758377A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-29 | 1963-09-28 | 1964-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-29 | 1967-09-28 | 1968-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-29 | 1971-09-28 | 1972-03-29 | $7700.00 | Window Closed / Lapsed |