US3113269A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radio duplexing apparatus for use in a continuous wave radio system
Assignee: The General Electric Company PLC
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Filing: 1961-12-19
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Granted: 1963-12-03
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Expires: 1981-12-19
Abstract
No abstract record available.
Inventors
- 👤 Essam Roy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:53
CPC Classifications
H; H04; H04B; H04B1/00; H04B1/38; H04B1/40; H04B1/50; H04B1/52; H04B1/525; G; G01; G01S; G01S1/00; G01S1/02; G01S7/00; G01S7/02; G01S7/03; G01S7/034; G01S7/038; H01; H01P; H01P1/00; H01P1/18; H01P1/19
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
RADIO APPARATUS FOR USE IN A CONTINUOUS WAVE RADIO SYSTEM COMPRISING A RADIO TRANSMITTER, A RADIO RECEIVER, AN AERIAL ARRANGEMENT, A FIRST PATH OVER WHICH DURING OPERATION IS SUPPLIED A RADIO FREQUENCY SIGNAL FROM THE TRANSMITTER TO THE AERIAL ARRANGEMENT, A SECOND PATH OVER WHICH DURING OPERATION IS SUPPLIED A RADIO FREQUENCY SIGNAL FROM THE AERIAL ARRANGEMENT TO THE RECEIVER, MEANS TO DERIVE A SIGNAL FROM THE FIRST PATH AND TO SUPPLY IT TO THE SECOND PATH, A FIRST WAVEGUIDE WHICH PROVIDES AN INPUT AT ONE END FOR SAID DERIVED SIGNAL AND IS TERMINATED AT THE OTHER END, A SECOND WAVEGUIDE WHICH PROVIDES AN OUTPUT AT ONE END FOR SAID DERIVED SIGNAL AND IS TERMINATED AT THE OTHER END, A COUPLING BETWEEN THE FIRST AND
Claim 2
Dependent Claim
125 words
RADIO APPARATUS FOR USE IN A CONTINUOUS WAVE RADIO SYSTEM COMPRISING A RADIO TRANSMITTER, A RADIO RECEIVER, AN AERIAL ARRANGEMENT, A FIRST PATH OVER WHICH DURING OPERATION IS SUPPLIED A RADIO FREQUENCY SIGNAL FROM THE TRANSMITTER TO THE AERIAL ARRANGEMENT, A SECOND PATH OVER WHICH DURING OPERATION IS SUPPLIED A RADIO FREQUENCY SIGNAL FROM THE AERIAL ARRANGEMENT TO THE RECEIVER, MEANS TO DERIVE A SIGNAL FROM THE FIRST PATH AND TO SUPPLY IT TO THE SECOND PATH, A FIRST WAVEGUIDE WHICH PROVIDES AN INPUT AT ONE END FOR SAID DERIVED SIGNAL AND IS TERMINATED AT THE OTHER END, A SECOND WAVEGUIDE WHICH PROVIDES AN OUTPUT AT ONE END FOR SAID DERIVED SIGNAL AND IS TERMINATED AT THE OTHER END, A COUPLING BETWEEN THE FIRST AND
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) | 1966-12-02 | 1967-06-03 | 1967-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-02 | 1971-06-03 | 1971-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-02 | 1975-06-03 | 1975-12-03 | $7700.00 | Window Closed / Lapsed |