US3495219A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plural frequency command encoder system utilizing a matrix selector and linear mixer
Assignee: United States Department of the Navy
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Filing: 1967-05-19
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Granted: 1970-02-10
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Expires: 1987-05-19
Abstract
No abstract record available.
Inventors
- 👤 Gary D Clapp
- 👤 Fred Macreno Jr
- 👤 Donald R Willis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:01
CPC Classifications
H; H04; H04Q; H04Q9/00; H04Q9/08; H04Q9/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2397088A
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US3053478A
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US2840797A
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US2934745A
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US3119078A
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US3140468A
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US3226643A
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US3263141A
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US3242480A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-09 | 1973-08-11 | 1974-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-09 | 1977-08-11 | 1978-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-09 | 1981-08-11 | 1982-02-10 | $7700.00 | Window Closed / Lapsed |