US3246245A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combined antenna and converter circuit
Assignee: Individual
•
Filing: 1961-06-05
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Granted: 1966-04-12
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Expires: 1981-06-05
Abstract
No abstract record available.
Inventors
- 👤 Edwin M Turner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:01
CPC Classifications
H; H01; H01Q; H01Q23/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
60 words
A COMBINED ANTENNA AND CONVERTER CIRCUIT COMPRISING: A CONICAL SPIRAL ANTENNA INCLUDING A PAIR OF ARMS, AT LEAST ONE OF SAID ARMS BEING A SECTION OF COAXIAL CONDUCTOR, INTERMEDIATE FREQUENCY OUTPUT MEANS COUPLED TO THE INNER CONDUCTOR OF SAID COAXIAL CONDUCTOR, A NONLINEAR MIXER CONNECTED BETWEEN THE ENDS OF SAID ARMS, AND MEANS TO APPLY LOCAL OSCILLATIONS TO SAID ANTENNA.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-11 | 1969-10-11 | 1970-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-11 | 1973-10-11 | 1974-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-11 | 1977-10-11 | 1978-04-12 | $7700.00 | Window Closed / Lapsed |