US3206330A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Weather and track resistant coating system
Assignee: Westinghouse Electric Corp
•
Filing: 1962-05-25
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Granted: 1965-09-14
•
Expires: 1982-05-25
Abstract
No abstract record available.
Inventors
- 👤 Chottiner Jacob
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:23
CPC Classifications
H; H01; H01B; H01B3/00; H01B3/18; H01B3/30; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31511; Y10T428/31515; Y10T428/31855; Y10T428/31909; Y10T428/31928
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
IN AN ELECTRICAL APPARATUS HAVING SURFACES EXPOSED TO TRACKING, ARCING AND FLASHOVER, THE IMPROVEMENT COMPRISING A MULTI-LAYER TRACK AND ARC-RESISTANT COATING DEPOSITED ONTO SAID SURFACES, SAID COATING COMPRISING A FIRST LAYER OF THE HETEROPOLYMERIZED PRODUCT DERIVED FROM A MIXTURE OF (A) A REACTIVE EPOXY RESIN, (B) A COREACTIVE EPOXY CROSS-LINKING AGENT SELECTED FROM THE GROUP CONSISTING OF POLYAMIDES AND AMINE ADDUCTS, (C) ALUMINUM OXIDE TRIHYDRATE AND (D) A FINELY DIVIDED INERT MINERAL FILLER, WHEREIN THE WEIGHT PROPORTION OF EPOXY RESIN TO CROSS-LINKING AGENT IS WITHIN THE RANE OF ABOUT 80:20 TO ABOUT 40:60, THE WEIGHT PROPORTION OF ALUMINUM OXIDE
Claim 2
Dependent Claim
99 words
IN AN ELECTRICAL APPARATUS HAVING SURFACES EXPOSED TO TRACKING, ARCING AND FLASHOVER, THE IMPROVEMENT COMPRISING A MULTI-LAYER TRACK AND ARC-RESISTANT COATING DEPOSITED ONTO SAID SURFACES, SAID COATING COMPRISING A FIRST LAYER OF THE HETEROPOLYMERIZED PRODUCT DERIVED FROM A MIXTURE OF (A) A REACTIVE EPOXY RESIN, (B) A COREACTIVE EPOXY CROSS-LINKING AGENT SELECTED FROM THE GROUP CONSISTING OF POLYAMIDES AND AMINE ADDUCTS, (C) ALUMINUM OXIDE TRIHYDRATE AND (D) A FINELY DIVIDED INERT MINERAL FILLER, WHEREIN THE WEIGHT PROPORTION OF EPOXY RESIN TO CROSS-LINKING AGENT IS WITHIN THE RANE OF ABOUT 80:20 TO ABOUT 40:60, THE WEIGHT PROPORTION OF ALUMINUM OXIDE
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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) | 1968-09-13 | 1969-03-15 | 1969-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-13 | 1973-03-15 | 1973-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-13 | 1977-03-15 | 1977-09-14 | $7700.00 | Window Closed / Lapsed |