Patent US3305797A successfully refreshed from Google Patents.
US3305797A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Microwave switching networks
Assignee: Emerson Electric Co
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Filing: 1964-04-24
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Granted: 1967-02-21
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Expires: 1984-04-24
Abstract
No abstract record available.
Inventors
- 👤 Clavin Alvin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:03
CPC Classifications
H; H01; H01P; H01P1/00; H01P1/10; H01P1/11
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
174 words
RECIPROCAL SINGLE POLE-DOUBLE THROW MICROWAVE SWITCH NETWORK OF THE CHARACTER HAVING INPUT AND FIRST AND SECOND OUTPUT TERMINALS AND COMPRISING: FIRST NONRECIPROCAL MICROWAVE JUNCTION FERRITE CIRCULATOR OF THE CHARACTER INCLUDING EXTERNALLY CONTROLLABLE MEANS INTEGRALLY ASSOCIATED THEREWITH FOR SELECTIVELY CAUSING NONRECIPROCAL MICROWAVE CIRCULATION THEREWITHIN, AND FOR REVERSING THE SENSE OF ROTATION OF CIRCULATION ASSOCIATED THEREWITH AND HAVING FIRST, SECOND AND THIRD PORTS; SECOND NONRECIPROCAL CIRCULATOR HAVING FIRST, SECOND AND THIRD PORTS; AND THIRD NONRECIPROCAL CIRCULATION ASSOCIATED THEREWITH AND PORTS, SAID FIRST PORT OF SAID FIRST CIRCULATOR BEING CONNECTED TO SAID NETWORK INPUT TERMINAL, SAID SECOND PORT OF SAID FIRST CIRCULATOR BEING COUPLED TO SAID FIRST PORT OF SAID SECOND CIRCULATOR, SAID THIRD PORT OF SAID FIRST CIRCULATOR BEING COUPLED TO SAID SECOND PORT OF SAID THIRD CIRCULATOR, SAID SECOND PORT OF SAID SECOND CIRCULATOR BEING COUPLED TO SAID NETWORK FIRST OUTPUT TERMINAL, SAID THIRD PORT OF SAID SECOND CIRCULATOR BEING COUPLED TO SAID FIRST PORT OF SAID THIRD CIRCULATOR, AND SAID THIRD PORT OF SAID THIRD CIRCULATOR BEING COUPLED TO SAID NETWORK SECOND OUTPUT TERMINAL.
Claim 2
Dependent Claim
174 words
RECIPROCAL SINGLE POLE-DOUBLE THROW MICROWAVE SWITCH NETWORK OF THE CHARACTER HAVING INPUT AND FIRST AND SECOND OUTPUT TERMINALS AND COMPRISING: FIRST NONRECIPROCAL MICROWAVE JUNCTION FERRITE CIRCULATOR OF THE CHARACTER INCLUDING EXTERNALLY CONTROLLABLE MEANS INTEGRALLY ASSOCIATED THEREWITH FOR SELECTIVELY CAUSING NONRECIPROCAL MICROWAVE CIRCULATION THEREWITHIN, AND FOR REVERSING THE SENSE OF ROTATION OF CIRCULATION ASSOCIATED THEREWITH AND HAVING FIRST, SECOND AND THIRD PORTS; SECOND NONRECIPROCAL CIRCULATOR HAVING FIRST, SECOND AND THIRD PORTS; AND THIRD NONRECIPROCAL CIRCULATION ASSOCIATED THEREWITH AND PORTS, SAID FIRST PORT OF SAID FIRST CIRCULATOR BEING CONNECTED TO SAID NETWORK INPUT TERMINAL, SAID SECOND PORT OF SAID FIRST CIRCULATOR BEING COUPLED TO SAID FIRST PORT OF SAID SECOND CIRCULATOR, SAID THIRD PORT OF SAID FIRST CIRCULATOR BEING COUPLED TO SAID SECOND PORT OF SAID THIRD CIRCULATOR, SAID SECOND PORT OF SAID SECOND CIRCULATOR BEING COUPLED TO SAID NETWORK FIRST OUTPUT TERMINAL, SAID THIRD PORT OF SAID SECOND CIRCULATOR BEING COUPLED TO SAID FIRST PORT OF SAID THIRD CIRCULATOR, AND SAID THIRD PORT OF SAID THIRD CIRCULATOR BEING COUPLED TO SAID NETWORK SECOND OUTPUT TERMINAL.
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) | 1970-02-20 | 1970-08-22 | 1971-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-20 | 1974-08-22 | 1975-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-20 | 1978-08-22 | 1979-02-21 | $7700.00 | Window Closed / Lapsed |