Patent US5797949A successfully refreshed from Google Patents.
US2965762A
Expired / Lapsed
US
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Frequency modulation goniometers and gyrogoniometers
Assignee: Individual
•
Filing: 1956-03-01
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Granted: 1960-12-20
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Expires: 1976-03-01
Abstract
No abstract record available.
Inventors
- 👤 Turck Jean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 04:24
CPC Classifications
G; G01; G01S; G01S3/00; G01S3/78; G01S3/782; G01S3/787; G01S3/788
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2352179A
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US2431510A
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US2825021A
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US2673318A
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US2659828A
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US2600168A
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US2713134A
Cited
US2702494A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-20 | 1964-06-20 | 1964-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-20 | 1968-06-20 | 1968-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-20 | 1972-06-20 | 1972-12-20 | $7700.00 | Window Closed / Lapsed |