Patent US3409836A successfully refreshed from Google Patents.
US3409836A
Expired / Lapsed
US
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Frequency synthesizer for communication systems
Assignee: General Dynamics Corp
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Filing: 1964-08-17
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Granted: 1968-11-05
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Expires: 1984-08-17
Abstract
No abstract record available.
Inventors
- 👤 Richard A Wallett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:59
CPC Classifications
H; H03; H03L; H03L7/00; H03L7/06; H03L7/16; H03L7/18; H03L7/183; H03J; H03J5/00; H03J5/02; H03J5/0245; H03J5/0272; H04; H04B; H04B1/00; H04B1/06; H04B1/16; H04B1/26; H04B1/38; H04B1/40; H04B1/403
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3008043A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-05 | 1972-05-06 | 1972-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-05 | 1976-05-06 | 1976-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-05 | 1980-05-06 | 1980-11-05 | $7700.00 | Window Closed / Lapsed |