US2668157A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Abrasion resistant wire enamels
Assignee: EIDP Inc
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Filing: 1951-03-15
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Granted: 1954-02-02
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Expires: 1971-03-15
Abstract
No abstract record available.
Inventors
- 👤 Fred J Emig
- 👤 Michael J Muth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:53
CPC Classifications
H; H01; H01B; H01B3/00; H01B3/18; H01B3/30; H01B3/36; C; C08; C08L; C08L77/00; H01B3/307; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/294
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
AN ELECTRICAL INSULTING LIQUID ORGANIC COATING COMPOSITION CONSISTING ESSENTIALLY OF AN ORGANIC FILM-FORMING MATERIAL OF THE GROUP WHICH CONSISTS OF (1) A COMBINATION OF HEAT-HARDENABLE PHENOL-DORMALDEHYDE RESIN AND POLYVINYL FORMAL RESIN, (2) A LINEAR POLYAMIDE AND (3) AN OLEORESINOUS VARNISH, AND COLLOIDAL POLYTETRAFLUOROETHYLENE DISPERSED UNIFORMLY THROUGHOUT SAID COATING COMPOSITON, IN A CONCENTRATION BETWEEN ABOUT 0.1% AND ABOUT 1% BY WEIGHT BASED ON SAID FILM-FORMING MATERIAL, TO INCREASE THE SCRAPE ABRASION RESISTANCE.
Claim 2
Dependent Claim
71 words
AN ELECTRICAL INSULTING LIQUID ORGANIC COATING COMPOSITION CONSISTING ESSENTIALLY OF AN ORGANIC FILM-FORMING MATERIAL OF THE GROUP WHICH CONSISTS OF (1) A COMBINATION OF HEAT-HARDENABLE PHENOL-DORMALDEHYDE RESIN AND POLYVINYL FORMAL RESIN, (2) A LINEAR POLYAMIDE AND (3) AN OLEORESINOUS VARNISH, AND COLLOIDAL POLYTETRAFLUOROETHYLENE DISPERSED UNIFORMLY THROUGHOUT SAID COATING COMPOSITON, IN A CONCENTRATION BETWEEN ABOUT 0.1% AND ABOUT 1% BY WEIGHT BASED ON SAID FILM-FORMING MATERIAL, TO INCREASE THE SCRAPE ABRASION RESISTANCE.
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) | 1957-02-01 | 1957-08-03 | 1958-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-02-01 | 1961-08-03 | 1962-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-02-01 | 1965-08-03 | 1966-02-02 | $7700.00 | Window Closed / Lapsed |