Patent CH276709A successfully refreshed from Google Patents.
Patent US3375474A successfully refreshed from Google Patents.
US3375474A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Microwave waveguide to coax coupling system
Assignee: Lockheed Martin Corp
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Filing: 1965-10-08
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Granted: 1968-03-26
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Expires: 1985-10-08
Abstract
No abstract record available.
Inventors
- 👤 Leonard W Thompson
- 👤 Billie W Preston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:44
CPC Classifications
H; H01; H01Q; H01Q13/00; H01Q13/10; H01Q13/18; H01P; H01P5/00; H01P5/08; H01P5/10; H01P5/103
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
IN A MICROWAVE TRANSMISSION SYSTEM, A HOLLOW CIRCULAR WAVEGUIDE HAVING AN END WALL CLOSING ONE END THEREOF, A COAXIAL TRANSMISSION LINE HAVING AN INNER CONDUCTOR AND AN OUTER CONDUTOR SURROUNDING SAID INNER CONDUCTOR, SAID TRANSMISSION LINE TERMINATES WITHIN SAID WAVEGUIDE WITH THE END PORTION OF SAID INNER CONDUCTOR EXTENDING ALONG THE CENTRAL LONGITUDINAL AXIS OF SAID WAVEGUIDE, AND MEANS FOR COUPLING SAID TRANSMISSION LINE AND SAID WAVEGUIDE AND OPERABLE TO PROPAGATE TE01 MODE WAVE ALONG SAID WAVEGUIDE INCLUDING FEEDER MEANS COMPRISING A PLURALITY OF FEEDER ELEMENTS ELECTRICALLY CON-
Claim 2
Dependent Claim
88 words
IN A MICROWAVE TRANSMISSION SYSTEM, A HOLLOW CIRCULAR WAVEGUIDE HAVING AN END WALL CLOSING ONE END THEREOF, A COAXIAL TRANSMISSION LINE HAVING AN INNER CONDUCTOR AND AN OUTER CONDUTOR SURROUNDING SAID INNER CONDUCTOR, SAID TRANSMISSION LINE TERMINATES WITHIN SAID WAVEGUIDE WITH THE END PORTION OF SAID INNER CONDUCTOR EXTENDING ALONG THE CENTRAL LONGITUDINAL AXIS OF SAID WAVEGUIDE, AND MEANS FOR COUPLING SAID TRANSMISSION LINE AND SAID WAVEGUIDE AND OPERABLE TO PROPAGATE TE01 MODE WAVE ALONG SAID WAVEGUIDE INCLUDING FEEDER MEANS COMPRISING A PLURALITY OF FEEDER ELEMENTS ELECTRICALLY CON-
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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) | 1971-03-26 | 1971-09-25 | 1972-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-26 | 1975-09-25 | 1976-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-26 | 1979-09-25 | 1980-03-26 | $7700.00 | Window Closed / Lapsed |