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US2808564A
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US
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Phase detector fault indicator
Assignee: Collins Radio Co
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Filing: 1956-07-16
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Granted: 1957-10-01
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Expires: 1976-07-16
Abstract
No abstract record available.
Inventors
- 👤 William C Brandt
- 👤 Luther W Couillard
- 👤 Herbert P Jacobson
- 👤 Emil L Martin
- 👤 William C Perkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:50
CPC Classifications
H; H03; H03L; H03L7/00; H03L7/06; H03L7/08; H03L7/085; H03L7/095
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2522139A
Cited
US2613271A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-09-30 | 1961-04-01 | 1961-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-30 | 1965-04-01 | 1965-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-30 | 1969-04-01 | 1969-10-01 | $7700.00 | Window Closed / Lapsed |