US2688746A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Impedance control coupling and decoupling system
Assignee: RADAR Inc
•
Filing: 1940-03-29
•
Granted: 1954-09-07
•
Expires: 1960-03-29
Abstract
No abstract record available.
Inventors
- 👤 Leo C Young
- 👤 Robert M Page
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:43
CPC Classifications
G; G01; G01S; G01S7/00; G01S7/02; G01S7/03; G01S7/034
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1035958A
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US1488006A
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US1872398A
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GB345918A
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GB358917A
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US2144836A
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US2281274A
Cited
GB485959A
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US2219922A
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US2189549A
Cited
US2235010A
Cited
US2400796A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-09-06 | 1958-03-08 | 1958-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-09-06 | 1962-03-08 | 1962-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-09-06 | 1966-03-08 | 1966-09-07 | $7700.00 | Window Closed / Lapsed |