US2947872A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Star tracking system
Assignee: Kollsman Instrument Corp
•
Filing: 1956-01-23
•
Granted: 1960-08-02
•
Expires: 1976-01-23
Abstract
No abstract record available.
Inventors
- 👤 Victor E Carbonara
- 👤 Howard J Eckweiler
- 👤 James B O'maley
- 👤 Paul D Hansell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:45
CPC Classifications
G; G01; G01S; G01S3/00; G01S3/78; G01S3/782; G01S3/787; G01S3/785; G01S3/786; G01S3/7867
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2422971A
Cited
US2403066A
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US2458831A
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US2513367A
Cited
US2762123A
Cited
US2713134A
Cited
US2820906A
Cited
US2870671A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-02 | 1964-02-01 | 1964-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-02 | 1968-02-01 | 1968-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-02 | 1972-02-01 | 1972-08-02 | $7700.00 | Window Closed / Lapsed |