US3287489A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Insulated high voltage cables
Assignee: Kerite Co
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Filing: 1964-09-08
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Granted: 1966-11-22
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Expires: 1984-09-08
Abstract
No abstract record available.
Inventors
- 👤 Jr Andrew Hvizd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:46
CPC Classifications
H; H01; H01B; H01B7/00; H01B7/02; H01B7/0275
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
AN INSULATED HIGH VOLTAGE CABLE COMPRISING THE COMBINATION WITH A CENTRAL CORE OF METAL OF HIGH CONDUCTIVITY AND AN OUTER METALLIC SHIELD OF HIGH CONDUCTIVITY, OF LAMINAR INSULATION LOCATED BETWEEN THE CORE AND THE SHIELD AND INCLUDING A THICK LAYER OF INSULATING MATERIAL OF SPECIFIC INDUCTIVE CAPACITY NOT GREATER THAN 4.5, AND A THIN LAYER OF INSULATING MATERIAL OF SPECIFIC INDUCTIVE CAPACITY NOT LESS THAN 10 COVERING AT LEAST ONE FACE OF SAID FIRST-NAMED LAYER OF INSULATING MATERIAL.
Claim 2
Dependent Claim
78 words
AN INSULATED HIGH VOLTAGE CABLE COMPRISING THE COMBINATION WITH A CENTRAL CORE OF METAL OF HIGH CONDUCTIVITY AND AN OUTER METALLIC SHIELD OF HIGH CONDUCTIVITY, OF LAMINAR INSULATION LOCATED BETWEEN THE CORE AND THE SHIELD AND INCLUDING A THICK LAYER OF INSULATING MATERIAL OF SPECIFIC INDUCTIVE CAPACITY NOT GREATER THAN 4.5, AND A THIN LAYER OF INSULATING MATERIAL OF SPECIFIC INDUCTIVE CAPACITY NOT LESS THAN 10 COVERING AT LEAST ONE FACE OF SAID FIRST-NAMED LAYER OF INSULATING MATERIAL.
References Cited (Backward Citations)
US2096840A
Cited
GB552273A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-21 | 1970-05-23 | 1970-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-21 | 1974-05-23 | 1974-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-21 | 1978-05-23 | 1978-11-22 | $7700.00 | Window Closed / Lapsed |