US3305799A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable coupler for electron tubes; adjustment made outside the vacuum and through a dielectric vacuum seal
Assignee: Varian Medical Systems Inc
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Filing: 1963-06-12
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Granted: 1967-02-21
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Expires: 1983-06-12
Abstract
No abstract record available.
Inventors
- 👤 Martin E Levin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:41
CPC Classifications
H; H01; H01J; H01J23/00; H01J23/36; H01J23/40; H01J23/46
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
AN ADJUSTABLE COUPLER FOR EXTRACTING ENERGY FROM AN ELECTROMAGNETIC CIRCUIT OF THE TYPE HAVING A CONDUCTIVE WALL DEFINING AN ELECTROMAGNETIC ENERGY CONFINING CIRCUIT COMPRISING A LOOP INSULATED FROM SAID WALL AND DISPOSED IN SAID CIRCUIT IN COUPLED RELATIONSHIP TO THE FIELDS OF THE ELECTROMAGNETIC ENERGY, AND CONNECTED DIRECTLY TO THE CENTER CONDUCTOR OF A COAXIAL OUTPUT TRANSMISSION LINE, A CYLINDRICAL DIELECTRIC MEMBER HAVING AN OPEN END MOUNTED ON SAID WALL AND A CLOSED END EXTENDING INTO SAID CIRCUIT, A 1ST CONDUCTIVE MEMBER DISPOSED WITHIN SAID CYLINDRICAL DIELECTRIC MEMBER AND MOUNTED DIRECTLY ON
Claim 2
Dependent Claim
92 words
AN ADJUSTABLE COUPLER FOR EXTRACTING ENERGY FROM AN ELECTROMAGNETIC CIRCUIT OF THE TYPE HAVING A CONDUCTIVE WALL DEFINING AN ELECTROMAGNETIC ENERGY CONFINING CIRCUIT COMPRISING A LOOP INSULATED FROM SAID WALL AND DISPOSED IN SAID CIRCUIT IN COUPLED RELATIONSHIP TO THE FIELDS OF THE ELECTROMAGNETIC ENERGY, AND CONNECTED DIRECTLY TO THE CENTER CONDUCTOR OF A COAXIAL OUTPUT TRANSMISSION LINE, A CYLINDRICAL DIELECTRIC MEMBER HAVING AN OPEN END MOUNTED ON SAID WALL AND A CLOSED END EXTENDING INTO SAID CIRCUIT, A 1ST CONDUCTIVE MEMBER DISPOSED WITHIN SAID CYLINDRICAL DIELECTRIC MEMBER AND MOUNTED DIRECTLY ON
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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 |