US2993820A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Insulated conductor and method of making same
Assignee: General Electric Co
•
Filing: 1956-04-09
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Granted: 1961-07-25
•
Expires: 1976-04-09
Abstract
No abstract record available.
Inventors
- 👤 Walter L Marshall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:13
CPC Classifications
H; H01; H01B; H01B13/00; H01B13/06; H01B13/062; H01B3/00; H01B3/02; H01B3/04; H01B3/08; H01B3/082; H01B3/18; H01B3/30; H01B3/42; H01B3/421; H01B3/422; H01B3/423; H01B7/00; H01B7/17; H01B7/28; Y; Y10; Y10S; Y10S138/00; Y10S138/01; Y10S285/00; Y10S285/909; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49863; Y10T29/49865
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
THE PROCESS OF INSULATING AN ELECTRICAL CONDUCTOR COMPRISING APPLYING A FIRST WRAP OF HEAT HARDENABLE RESIN IMPREGNATED MICA-PAPER MAT TAPE TO A BAR OF ELECTRICALLY CONDUCTIVE MATERIAL, WRAPPING AN OVERLAY OF POST-ORIENTED POLYETHYLENE TEREPHTHALATE ON SAID MICA-PAPER MAT TAPE, SUBJECTING SAID BAR WITH ITS WRAPPINGS OF MATERIAL TO A TEMPERATURE CORRESPONDING TO A TEMERATURE WHERE MAXIMUM SHRINKAGE IS OBTAINABLE IN SAID POST-ORIENTED POLYETHYLENE TEREPHTHALATE, AND REMOVING SAID POLYETHYLENE TEREPHTHALATE FROM SAID BAR UPON COOLING.
Claim 2
Dependent Claim
74 words
THE PROCESS OF INSULATING AN ELECTRICAL CONDUCTOR COMPRISING APPLYING A FIRST WRAP OF HEAT HARDENABLE RESIN IMPREGNATED MICA-PAPER MAT TAPE TO A BAR OF ELECTRICALLY CONDUCTIVE MATERIAL, WRAPPING AN OVERLAY OF POST-ORIENTED POLYETHYLENE TEREPHTHALATE ON SAID MICA-PAPER MAT TAPE, SUBJECTING SAID BAR WITH ITS WRAPPINGS OF MATERIAL TO A TEMPERATURE CORRESPONDING TO A TEMERATURE WHERE MAXIMUM SHRINKAGE IS OBTAINABLE IN SAID POST-ORIENTED POLYETHYLENE TEREPHTHALATE, AND REMOVING SAID POLYETHYLENE TEREPHTHALATE FROM SAID BAR UPON COOLING.
References Cited (Backward Citations)
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Cited
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Cited
GB606752A
Cited
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Cited
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Cited
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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) | 1964-07-24 | 1965-01-23 | 1965-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-24 | 1969-01-23 | 1969-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-24 | 1973-01-23 | 1973-07-25 | $7700.00 | Window Closed / Lapsed |