Patent US2786997A successfully refreshed from Google Patents.
US2786997A
Expired / Lapsed
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Linear interference free receiver
Assignee: Individual
•
Filing: 1945-10-11
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Granted: 1957-03-26
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Expires: 1965-10-11
Abstract
No abstract record available.
Inventors
- 👤 Torrence H Chambers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:28
CPC Classifications
H; H04; H04B; H04B1/00; H04B1/06; H04B1/10; H04B1/12; G; G01; G01S; G01S13/00; G01S13/02; G01S13/06; G01S13/42; G01S13/44; G01S7/00; G01S7/02; G01S7/36
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1660930A
Cited
US1993859A
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US2054647A
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US2112595A
Cited
US2103878A
Cited
US2302867A
Cited
US2490808A
Cited
US2410736A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-03-25 | 1960-09-24 | 1961-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-03-25 | 1964-09-24 | 1965-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-03-25 | 1968-09-24 | 1969-03-26 | $7700.00 | Window Closed / Lapsed |