Patent US3038345A successfully refreshed from Google Patents.
Patent US3217323A successfully refreshed from Google Patents.
US3217323A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Receiver gating circuit
Assignee: General Precision Inc
•
Filing: 1963-08-27
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Granted: 1965-11-09
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Expires: 1983-08-27
Abstract
No abstract record available.
Inventors
- 👤 John D Fackler
- 👤 John C Rolfs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:27
CPC Classifications
G; G01; G01S; G01S13/00; G01S13/02; G01S13/50; G01S13/58; G01S13/60
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
47 words
IN A PULSED RADAR SYSTEM INCLUDING A TRANSMITTER AND A RECEIVER COUPLED TO AN ANTENNA THROUGH A DUPLEXER, A RADIO FREQUENCY SWITCH AND AN ISOLATOR SERIALLY CONNECTED AND INTERPOSED BETWEEN SAID DUPLEXER AND SAID RECEIVER; AND MEANS FOR RENDERING SAID SWITCH NONCONDUCTIVE WHILE SAID TRANSMITTER IS OPERATIVE.
Claim 2
Dependent Claim
47 words
IN A PULSED RADAR SYSTEM INCLUDING A TRANSMITTER AND A RECEIVER COUPLED TO AN ANTENNA THROUGH A DUPLEXER, A RADIO FREQUENCY SWITCH AND AN ISOLATOR SERIALLY CONNECTED AND INTERPOSED BETWEEN SAID DUPLEXER AND SAID RECEIVER; AND MEANS FOR RENDERING SAID SWITCH NONCONDUCTIVE WHILE SAID TRANSMITTER IS OPERATIVE.
References Cited (Backward Citations)
US3021521A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-08 | 1969-05-10 | 1969-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-08 | 1973-05-10 | 1973-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-08 | 1977-05-10 | 1977-11-09 | $7700.00 | Window Closed / Lapsed |