Patent US3085239A successfully refreshed from Google Patents.
US3085239A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radio-frequency switching
Assignee: RCA Corp
•
Filing: 1957-03-18
•
Granted: 1963-04-09
•
Expires: 1977-03-18
Abstract
No abstract record available.
Inventors
- 👤 Merle V Hoover
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:29
CPC Classifications
G; G01; G01S; G01S7/00; G01S7/02; G01S7/03; G01S7/034
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
A RADAR SYSTEM COMPRISING A PULSE TRANSMITTER; A RECEIVER; A SINGLE ANTENNA FOR BOTH RADIATING AND RECEIVING PULSE SIGNALS; A DUPLEXER CIRCUIT INTERCONNECTING SAID TRANSMITTER, RECEIVER AND ANTENNA FOR SUBSTANTIALLY PREVENTING THE TRANSMITTER PULSES FROM REACHING THE RECEIVER; AND MEANS FOR CAUSING SAID TRANSMITTER TO TRANSMIT ONLY IN RESPONSE TO THE PLACING OF SAID DUPLEXER CIRCUIT INTO OPERATIVE CONDITION WHEREBY ANY TRANSMITTER PULSES PRODUCED ARE SUBSTANTIALLY PREVENTED FROM REACHING THE RECEIVER.
Claim 2
Dependent Claim
71 words
A RADAR SYSTEM COMPRISING A PULSE TRANSMITTER; A RECEIVER; A SINGLE ANTENNA FOR BOTH RADIATING AND RECEIVING PULSE SIGNALS; A DUPLEXER CIRCUIT INTERCONNECTING SAID TRANSMITTER, RECEIVER AND ANTENNA FOR SUBSTANTIALLY PREVENTING THE TRANSMITTER PULSES FROM REACHING THE RECEIVER; AND MEANS FOR CAUSING SAID TRANSMITTER TO TRANSMIT ONLY IN RESPONSE TO THE PLACING OF SAID DUPLEXER CIRCUIT INTO OPERATIVE CONDITION WHEREBY ANY TRANSMITTER PULSES PRODUCED ARE SUBSTANTIALLY PREVENTED FROM REACHING THE RECEIVER.
References Cited (Backward Citations)
US1537021A
Cited
US2743439A
Cited
US2523789A
Cited
US2651737A
Cited
US2745096A
Cited
US2776409A
Cited
US2801392A
Cited
US2970283A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-08 | 1966-10-08 | 1967-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-08 | 1970-10-08 | 1971-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-08 | 1974-10-08 | 1975-04-09 | $7700.00 | Window Closed / Lapsed |