Patent US2817771A successfully refreshed from Google Patents.
US3259684A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shielded resin insulated electric cable
Assignee: United States Steel Corp
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Filing: 1965-03-19
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Granted: 1966-07-05
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Expires: 1985-03-19
Abstract
No abstract record available.
Inventors
- 👤 Frederick W Wakefield
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:42
CPC Classifications
H; H01; H01B; H01B9/00; H01B9/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
AN ELECTRIC CABLE COMPRISING A STRANDED METALLIC CONDUCTOR, A SEMI-CONDUCTING SHIELDING TAPE SURROUNDING SAID CONDUCTOR, INSULATION HAVING AN AVERAGE LINEAR THERMAL EXPANSION COEFFICIENT PER DEGREE CENTIGRADE GREATER THAN 1.7 X 10**-4 SURROUNDING SAID SHIELDING TAPE, A SEMICONDUCTING TAPE SURROUNDING SAID INSULATION, A CONCENTRIC OPEN WOULD CONDUCTING METAL SHIELD SURROUNDING SAID SEMI-CONDUTING RAPE, THE RATIO BETWEEN THE LENGTH OF LAY OF THE OPEN WOUND SHIELD BEING BETWEEN 5 AND 12, A FABRIC THE OPEN WOUND SHIELD BEING BETWEEN 5 AND 12, A FABRIC TAPE SURROUNDING SAID OPEN WOUND SHIELD, AND AN INSULATING JACKET HAVING SUBSTANTIALLY THE SAME COEFFICIENT OF EXPANSION AS SAID FIRST NAMED INSULATION SURROUNDING SAID LAST NAMED TAPE.
Claim 2
Dependent Claim
109 words
AN ELECTRIC CABLE COMPRISING A STRANDED METALLIC CONDUCTOR, A SEMI-CONDUCTING SHIELDING TAPE SURROUNDING SAID CONDUCTOR, INSULATION HAVING AN AVERAGE LINEAR THERMAL EXPANSION COEFFICIENT PER DEGREE CENTIGRADE GREATER THAN 1.7 X 10**-4 SURROUNDING SAID SHIELDING TAPE, A SEMICONDUCTING TAPE SURROUNDING SAID INSULATION, A CONCENTRIC OPEN WOULD CONDUCTING METAL SHIELD SURROUNDING SAID SEMI-CONDUTING RAPE, THE RATIO BETWEEN THE LENGTH OF LAY OF THE OPEN WOUND SHIELD BEING BETWEEN 5 AND 12, A FABRIC THE OPEN WOUND SHIELD BEING BETWEEN 5 AND 12, A FABRIC TAPE SURROUNDING SAID OPEN WOUND SHIELD, AND AN INSULATING JACKET HAVING SUBSTANTIALLY THE SAME COEFFICIENT OF EXPANSION AS SAID FIRST NAMED INSULATION SURROUNDING SAID LAST NAMED TAPE.
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) | 1969-07-04 | 1970-01-03 | 1970-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-04 | 1974-01-03 | 1974-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-04 | 1978-01-03 | 1978-07-05 | $7700.00 | Window Closed / Lapsed |