US3577346A
Expired / Lapsed
US
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Insulated electrical conductors having corona resistant polymeric insulation containing organo metallic compounds
Assignee: 3M Co
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Filing: 1968-11-14
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Granted: 1971-05-04
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Expires: 1988-11-14
Abstract
Abstract INSULATED ELECTRICAL CONDUCTORS HAVING IMPROVED CORONA RESISTANCE COMPRISING A METAL CONDUCTOR SURROUNDED BY A MAJOR PORTION OF A DIELECTRIC POLYMER CONTAINING INTERMIXED THEREWITH A MINOR AMOUNT OF AN ORGANO-METALLIC COMPOUND OF A METAL SELECTED FROM SILICON, GERMANIUM, TIN, LEAD, PHOSPHOROUS, ARSENIC, ANTIMONY, BISMUTH, IRON, RUTHENIUM AND NICKEL AND A METHOD FOR THE PREPARATION OF THE INSULATED ELECTRICAL CONDUCTORS.
Inventors
- 👤 James J Mckeown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:15
CPC Classifications
H; H01; H01B; H01B3/00; H01B3/18; H01B3/30; H01B3/308; C; C08; C08K; C08K5/00; C08K5/56; C08K5/57; H01B3/303; H01B3/306; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31533; Y10T428/31678; Y10T428/31681; Y10T428/31692; Y10T428/31696; Y10T428/31699
Claims Analysis
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References Cited (Backward Citations)
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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) | 1974-05-03 | 1974-11-02 | 1975-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-03 | 1978-11-02 | 1979-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-03 | 1982-11-02 | 1983-05-04 | $7700.00 | Window Closed / Lapsed |