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US3470475A
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Automatic frequency discriminators and control for a phase-lock loop providing frequency preset capabilities
Assignee: National Aeronautics and Space Administration
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Filing: 1966-09-28
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Granted: 1969-09-30
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Expires: 1986-09-28
Abstract
No abstract record available.
Inventors
- 👤 William D Peterson
- 👤 Arthur J Kline Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:09
CPC Classifications
H; H03; H03L; H03L7/00; H03L7/06; H03L7/08; H03L7/10; H03L7/113
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US3124799A
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US2858425A
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US2906866A
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US2878448A
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US3135919A
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US3130375A
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US3241084A
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US3289082A
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US3308387A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-29 | 1973-03-31 | 1973-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-29 | 1977-03-31 | 1977-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-29 | 1981-03-31 | 1981-09-30 | $7700.00 | Window Closed / Lapsed |