US3214684A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Broadband variable coupler for microwave energy
Assignee: Varian Medical Systems Inc
•
Filing: 1962-10-03
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Granted: 1965-10-26
•
Expires: 1982-10-03
Abstract
No abstract record available.
Inventors
- 👤 John C Everitt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:25
CPC Classifications
H; H01; H01P; H01P5/00; H01P5/04; H01P5/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
A MICROWAVE DEVICE, COMPRISING: A MICROWAVE ENRGY TRANSMISSION MEANS WITH AT LEAST TWO COUPLED CONNECTIONS; A PROBE AT ONE OF SAID CONNECTIONS, SAID PROBE BEING ADAPTED FOR CAPACITIVE COUPLING TO A WAVEGUIDE; A LOOP AT THE OTHER OF SAID CONNECTIONS, SAID LOOP BEING ADAPTED FOR INDUCTIVE COUPLING TO WAVE SUPPORTING STRUCTURE; SAID LOOP AND SAID PROBE COMPRISING OPPOSITE ENDS OF A SINGLE CONDUCTING WIRE THAT EXTENDS FROM SAID WAVEGUIDE ROTATION OF SAID LOOP, WHEREBY THE INDUCTIVE COUPLING BETWEEN SAID WAVEGUIDE AND SAID WAVE SUPPORTING STRUCTURE IS VARIES OVER A VERY WIDE RANGE.
Claim 2
Dependent Claim
92 words
A MICROWAVE DEVICE, COMPRISING: A MICROWAVE ENRGY TRANSMISSION MEANS WITH AT LEAST TWO COUPLED CONNECTIONS; A PROBE AT ONE OF SAID CONNECTIONS, SAID PROBE BEING ADAPTED FOR CAPACITIVE COUPLING TO A WAVEGUIDE; A LOOP AT THE OTHER OF SAID CONNECTIONS, SAID LOOP BEING ADAPTED FOR INDUCTIVE COUPLING TO WAVE SUPPORTING STRUCTURE; SAID LOOP AND SAID PROBE COMPRISING OPPOSITE ENDS OF A SINGLE CONDUCTING WIRE THAT EXTENDS FROM SAID WAVEGUIDE ROTATION OF SAID LOOP, WHEREBY THE INDUCTIVE COUPLING BETWEEN SAID WAVEGUIDE AND SAID WAVE SUPPORTING STRUCTURE IS VARIES OVER A VERY WIDE RANGE.
References Cited (Backward Citations)
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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) | 1968-10-25 | 1969-04-26 | 1969-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-25 | 1973-04-26 | 1973-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-25 | 1977-04-26 | 1977-10-26 | $7700.00 | Window Closed / Lapsed |