US3291639A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of insulating electrical conductors
Assignee: General Electric Co
•
Filing: 1963-02-25
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Granted: 1966-12-13
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Expires: 1983-02-25
Abstract
No abstract record available.
Inventors
- 👤 Ralph G Flowers
- 👤 Thomas L Sherer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:32
CPC Classifications
H; H01; H01B; H01B13/00; H01B13/06; H01B13/065; H01B13/16; H01B3/00; H01B3/18; H01B3/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
59 words
A METHOD OF CURING A FILM INSULATION ELECTED FROM THE GROUP CONSISTING OF EPOXIES, POLYESTERS, ACRYLICS, POLYVINYL FORMALS AND UREA-FORMADEHYDES, IN WHICH THE FILM IS COATED ON A CONDUCTOR AND THE CONDUCTOR IS HEATED IN A NONOXIDIZING ATMOSPHERE AT A TEMPERATURE BELOW THE DECOMPOSITING TEMPERATURE OF SAID FILM INSULATION SAID TEMPERATURE BEING AT LEAST 250*C. FOR APPROXIMATELY 10 MINUTES.
Claim 2
Independent Claim
59 words
A METHOD OF CURING A FILM INSULATION ELECTED FROM THE GROUP CONSISTING OF EPOXIES, POLYESTERS, ACRYLICS, POLYVINYL FORMALS AND UREA-FORMADEHYDES, IN WHICH THE FILM IS COATED ON A CONDUCTOR AND THE CONDUCTOR IS HEATED IN A NONOXIDIZING ATMOSPHERE AT A TEMPERATURE BELOW THE DECOMPOSITING TEMPERATURE OF SAID FILM INSULATION SAID TEMPERATURE BEING AT LEAST 250*C. FOR APPROXIMATELY 10 MINUTES.
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) | 1969-12-12 | 1970-06-13 | 1970-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-12 | 1974-06-13 | 1974-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-12 | 1978-06-13 | 1978-12-13 | $7700.00 | Window Closed / Lapsed |