US3174119A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Microwave receiver protective circuit
Assignee: Individual
•
Filing: 1962-08-29
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Granted: 1965-03-16
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Expires: 1982-08-29
Abstract
No abstract record available.
Inventors
- 👤 Robert J Jones
- 👤 George F Farrell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:21
CPC Classifications
H; H01; H01J; H01J17/00; H01J17/02; H01J17/04; G; G01; G01S; G01S7/00; G01S7/02; G01S7/03; G01S7/034
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
A PROTECTIVE DEVICE FOR CONNECTING BETWEEN THE INPUT OF A MICROWAVE RECEIVER AND A SOURCE OF RADIO FREQUENCY ENERGY COMPRISING A RESONANT CAVITY, A PAIR OF SIMILAR SOLID STATE DIODES OF THE VOLTAGE DEPENDENT VARIABLE REACTANCE TYPE IN WHICH THE CAPACITY BETWEEN THE DIODE TERMINALS IS DEPENDENT UPON THE VOLTAGE ACROSS THE TERMINALS, DIRECT CONNECTIONS BETWEEN THE ANODE OF ONE DIODE AND THE CATHODE OF THE OTHER DIODE AND ONE OF TWO POINTS IN SAID CAVITY HAVING A HIGH RADIO FREQUENCY POTENTIAL DIFFERENCE, AND DIRECT CONNECTIONS BETWEEN THE CATHODE OF SAID ONE DIODE AND THE ANODE OF SAID OTHER DIODE AND THE OTHER OF SAID TWO POINTS, SAID CAVITY BEING RESONANT AT THE FREQUENCY OF SAID SOURCE WHEN THE CAPACITANCES OF SAID DIODES HAVE THEIR ZERO VOLTAGE VALUES.
Claim 2
Dependent Claim
128 words
A PROTECTIVE DEVICE FOR CONNECTING BETWEEN THE INPUT OF A MICROWAVE RECEIVER AND A SOURCE OF RADIO FREQUENCY ENERGY COMPRISING A RESONANT CAVITY, A PAIR OF SIMILAR SOLID STATE DIODES OF THE VOLTAGE DEPENDENT VARIABLE REACTANCE TYPE IN WHICH THE CAPACITY BETWEEN THE DIODE TERMINALS IS DEPENDENT UPON THE VOLTAGE ACROSS THE TERMINALS, DIRECT CONNECTIONS BETWEEN THE ANODE OF ONE DIODE AND THE CATHODE OF THE OTHER DIODE AND ONE OF TWO POINTS IN SAID CAVITY HAVING A HIGH RADIO FREQUENCY POTENTIAL DIFFERENCE, AND DIRECT CONNECTIONS BETWEEN THE CATHODE OF SAID ONE DIODE AND THE ANODE OF SAID OTHER DIODE AND THE OTHER OF SAID TWO POINTS, SAID CAVITY BEING RESONANT AT THE FREQUENCY OF SAID SOURCE WHEN THE CAPACITANCES OF SAID DIODES HAVE THEIR ZERO VOLTAGE VALUES.
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) | 1968-03-15 | 1968-09-14 | 1969-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-15 | 1972-09-14 | 1973-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-15 | 1976-09-14 | 1977-03-16 | $7700.00 | Window Closed / Lapsed |