Patent US3356785A successfully refreshed from Google Patents.
US3356785A
Expired / Lapsed
US
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Electric transmission coaxial cables
Assignee: Sumitomo Electric Industries Ltd
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Filing: 1964-12-29
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Granted: 1967-12-05
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Expires: 1984-12-29
Abstract
No abstract record available.
Inventors
- 👤 Yoshida Yasuhisa
- 👤 Suzuki Masakazu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:37
CPC Classifications
H; H02; H02G; H02G5/00; H02G5/06; H02G5/066; H01; H01B; H01B11/00; H01B11/18; H01B11/1834; H01B9/00; H01B9/06; H01B9/0644; H01B9/0666
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
A FLUID INSULATED ELECTRIC TRANSMISSION COAXIAL CABLE HAVING AN INNER CONDUCTOR CONCENTRICALLY SUPPORTED BY INSULATING SPACERS IN AN OUTER CONDUCTOR, INNER AND OUTER INSULATING SUPPORT SURFACES ON SAID INSULATING SPACERS IN SUBSTANTIALLY CONTINUOUS SURFACE CONTACT WITH THE ADJACENT SURFACES OF SAID CODUCTORS, CHARACTERIZED BY AT LEAST ONE CONTINUOUS GROOVE IN AND ALONG AT LEAST ONE OF SAID INSULATING SUPPORT SURFACES SUCH THAT EACH MARGINAL EDGE SURFACE OF EACH GROOVED INSULATING SUPPORT SURFACE IS PROVIDED WITH A CONTINUOUS GROOVE EDGE THEREALONG, CONDUCTIVE MATERIAL IN EACH OF SAID GROOVES AND
Claim 2
Dependent Claim
88 words
A FLUID INSULATED ELECTRIC TRANSMISSION COAXIAL CABLE HAVING AN INNER CONDUCTOR CONCENTRICALLY SUPPORTED BY INSULATING SPACERS IN AN OUTER CONDUCTOR, INNER AND OUTER INSULATING SUPPORT SURFACES ON SAID INSULATING SPACERS IN SUBSTANTIALLY CONTINUOUS SURFACE CONTACT WITH THE ADJACENT SURFACES OF SAID CODUCTORS, CHARACTERIZED BY AT LEAST ONE CONTINUOUS GROOVE IN AND ALONG AT LEAST ONE OF SAID INSULATING SUPPORT SURFACES SUCH THAT EACH MARGINAL EDGE SURFACE OF EACH GROOVED INSULATING SUPPORT SURFACE IS PROVIDED WITH A CONTINUOUS GROOVE EDGE THEREALONG, CONDUCTIVE MATERIAL IN EACH OF SAID GROOVES AND
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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) | 1970-12-04 | 1971-06-05 | 1971-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-04 | 1975-06-05 | 1975-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-04 | 1979-06-05 | 1979-12-05 | $7700.00 | Window Closed / Lapsed |