US3217094A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polycarbonate cable
Assignee: Ericsson Inc
•
Filing: 1962-12-24
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Granted: 1965-11-09
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Expires: 1982-12-24
Abstract
No abstract record available.
Inventors
- 👤 Victor F Volk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 00:48
CPC Classifications
H; H01; H01B; H01B9/00; H01B9/02; H01B9/023; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31678; Y10T428/31681
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
60 words
A THICK, FLEXIBLE WALL OF ELECTRICAL INSULATION COMPRISING: (A) A LARGE PLURALITY OF LAYERS OF POLYCARBONATE TAPES, (B) VACUUM DEPOSITED METALLIC FILM COATING SAID TAPES, (A) SAID FILM BEING FROM ABOUT 250 ANGSTROMS TO 0.01 MIL IN THICKNESS, AND HAVING LOW ELECTRICAL CONDUCTANCE DUE TO ITS EXTREME THINNESS, (B) SAID METALLIC FILM SUBSTANTIALLY REDUCING THE FRICTIONAL RESISTANCE BETWEEN SAID LAYERS.
Claim 2
Dependent Claim
60 words
A THICK, FLEXIBLE WALL OF ELECTRICAL INSULATION COMPRISING: (A) A LARGE PLURALITY OF LAYERS OF POLYCARBONATE TAPES, (B) VACUUM DEPOSITED METALLIC FILM COATING SAID TAPES, (A) SAID FILM BEING FROM ABOUT 250 ANGSTROMS TO 0.01 MIL IN THICKNESS, AND HAVING LOW ELECTRICAL CONDUCTANCE DUE TO ITS EXTREME THINNESS, (B) SAID METALLIC FILM SUBSTANTIALLY REDUCING THE FRICTIONAL RESISTANCE BETWEEN SAID LAYERS.
References Cited (Backward Citations)
US2260845A
Cited
US2315039A
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US2447168A
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US2344501A
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FR1221586A
Cited
GB832902A
Cited
US3105872A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-08 | 1969-05-10 | 1969-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-08 | 1973-05-10 | 1973-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-08 | 1977-05-10 | 1977-11-09 | $7700.00 | Window Closed / Lapsed |