US3092789A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Microwave switching circuit
Assignee: AT&T Inc
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Filing: 1960-09-30
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Granted: 1963-06-04
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Expires: 1980-09-30
Abstract
No abstract record available.
Inventors
- 👤 John D Cremin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:20
CPC Classifications
H; H01; H01P; H01P1/00; H01P1/10; H01P1/11
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
A HIGH SPEED MICROWAVE SWITCHING CIRCUIT FOR CONNECTING FIRST AND SECOND RADIO-FREQUENCY SUPPLIES ALTERNATELY TO A COMMON LOAD WHILE SIMULTANEOUSLY ABSORBING THE ENERGY OF THE OTHER SUPPLY, SAID CIRCUIT COMPRISING A MULTIBRANCH CIRCULATOR WITH SAID FIRST AND SECOND SUPPLIES AND A USABLE LOAD CONNECTED RESPECTIVELY TO DIFFERENT BRANCHES THEREOF, AN ISOLATOR INTERPOSED BETWEEN SAID CIRCULATOR AND SAID SECOND SUPPLY AND EXHIBITING NONRECIPROCAL ATTENUATION IN THE DIRECTION FROM SAID CIRCULATOR TO SAID SECOND SUPPLY, AND MEANS INTERPOSED BETWEEN SAID CIRCULATOR AND SAID ISOLATOR AND HAVING A FIRST RECIPROCALLY TRANSPARENT STATE FOR DIRECTING ENERGY FROM SAID SECOND SUPPLY TO SAID LOAD WHILE SIMULTANEOUSLY DIRECTING ENERGY FROM SAID FIRST SUPPLY TO SAID ISOLATOR FOR ABSORPTION THEREIN, SAID MEANS HAVING AN ALTERNATE RECIPROCALLY REFLECTIVE STATE FOR DIRECTING ENERGY FROM SAID SECOND SUPPLY BACK TO SAID ISOLATOR FOR ABSORPTION THEREIN WHILE SIMULTANEOUSLY DIRECTING ENERGY FROM SAID FIRST SUPPLY TO SAID LOAD.
Claim 2
Dependent Claim
146 words
A HIGH SPEED MICROWAVE SWITCHING CIRCUIT FOR CONNECTING FIRST AND SECOND RADIO-FREQUENCY SUPPLIES ALTERNATELY TO A COMMON LOAD WHILE SIMULTANEOUSLY ABSORBING THE ENERGY OF THE OTHER SUPPLY, SAID CIRCUIT COMPRISING A MULTIBRANCH CIRCULATOR WITH SAID FIRST AND SECOND SUPPLIES AND A USABLE LOAD CONNECTED RESPECTIVELY TO DIFFERENT BRANCHES THEREOF, AN ISOLATOR INTERPOSED BETWEEN SAID CIRCULATOR AND SAID SECOND SUPPLY AND EXHIBITING NONRECIPROCAL ATTENUATION IN THE DIRECTION FROM SAID CIRCULATOR TO SAID SECOND SUPPLY, AND MEANS INTERPOSED BETWEEN SAID CIRCULATOR AND SAID ISOLATOR AND HAVING A FIRST RECIPROCALLY TRANSPARENT STATE FOR DIRECTING ENERGY FROM SAID SECOND SUPPLY TO SAID LOAD WHILE SIMULTANEOUSLY DIRECTING ENERGY FROM SAID FIRST SUPPLY TO SAID ISOLATOR FOR ABSORPTION THEREIN, SAID MEANS HAVING AN ALTERNATE RECIPROCALLY REFLECTIVE STATE FOR DIRECTING ENERGY FROM SAID SECOND SUPPLY BACK TO SAID ISOLATOR FOR ABSORPTION THEREIN WHILE SIMULTANEOUSLY DIRECTING ENERGY FROM SAID FIRST SUPPLY TO SAID LOAD.
References Cited (Backward Citations)
US2973512A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-06-03 | 1966-12-03 | 1967-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-03 | 1970-12-03 | 1971-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-03 | 1974-12-03 | 1975-06-04 | $7700.00 | Window Closed / Lapsed |