Patent US2549101A successfully refreshed from Google Patents.
US2549101A
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Insulated electrical conductor
Assignee: Hercules Powder Co
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Filing: 1947-03-18
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Granted: 1951-04-17
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Expires: 1967-03-18
Abstract
No abstract record available.
Inventors
- 👤 Koch William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:48
CPC Classifications
H; H01; H01B; H01B3/00; H01B3/18; H01B3/185; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/294; Y10T428/296; Y10T428/31504; Y10T428/31678; Y10T428/31692; Y10T428/31696
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
102 words
AN INSULATED ELECTRICAL CONDUCTOR COMPRISING, AN ELECTRICAL CONDUCTOR AND AN INSULATION THEREOF A PLASTIC COMPOSITION COMPRISING ETHYL CELLULOSE (43.5 TO 50% ETHOXYL, 50 PARTIALLY HYDROGENATED MIXTURE OF ISOPOLYVINYL BUTYRAL (HYDROXYL CONTENT SAID INSULATED CONDUCTOR BEING CHARACTERIZED BY FREEDOM FROM ANY TENDENCY OF EXUDE OIL, FLEXBILITY AT -10* C., CUT RESISTANCE OF AT LEAST 50 GRAMS PER MIL OF INSULATION THICKNESS, ABRASION RESISTANCE OF AT LEAST 1.0 REVOLUTION PER MIL OF INSULATION THICKNESS AND HALF-HITCH CUT RESISTANCE OF AT LEAST 1.5 POUNDS PER MIL OF INSULATION THICKNESS, SAID PLASTIC COMPOSITION BEING APPLIED TO SAID ELECTRICAL CONDUCTOR BY EXTRUSION AT ELEVATED TEMPERATURE AND PRESSURE.
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) | 1954-04-16 | 1954-10-16 | 1955-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-16 | 1958-10-16 | 1959-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-16 | 1962-10-16 | 1963-04-17 | $7700.00 | Window Closed / Lapsed |