US3759866A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Therewith solvent epoxy resin composition and an electrical member impregnated
Assignee: Westinghouse Electric Corp
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Filing: 1971-10-14
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Granted: 1973-09-18
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Expires: 1991-10-14
Abstract
Abstract A RESINOUS COMPOSITION, SUITABLE AS A SOLVENTLESS IMPREGNATING RESIN FOR LARGE ROTATING APPARATUS INSULATION, IS MADE FROM A MIXTURE CONTAINING ABOUT 85 TO 115 PARTS OF A BISPHENOL A OR NOVOLAC GLYCIDYL ETHER EPOXY RESIN, ABOUT 100 TO 155 PARTS OF AN ACID ANHYDRIDE AND ABOUT 25 TO 95 PARTS OF A DIGLYCIDYL ETHER OF NEOPENTYL GLYCOL.
Inventors
- 👤 D Rogers
- 👤 J Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:16
CPC Classifications
H; H02; H02K; H02K3/00; H02K3/30; C; C08; C08G; C08G59/00; C08G59/18; C08G59/20; C08G59/22; C08G59/226; C08G59/32; C08G59/38; C08G59/40; C08G59/42; H01; H01B; H01B3/00; H01B3/18; H01B3/30; H01B3/40
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-09-17 | 1977-03-19 | 1977-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-17 | 1981-03-19 | 1981-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-17 | 1985-03-19 | 1985-09-18 | $7700.00 | Window Closed / Lapsed |