US3039987A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pulverulent coating compositions adapted for use in fluidizing processes containing epoxy resin and fillers
Assignee: Westinghouse Electric Corp
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Filing: 1959-05-28
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Granted: 1962-06-19
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Expires: 1979-05-28
Abstract
No abstract record available.
Inventors
- 👤 Irving N Elbling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:55
CPC Classifications
C; C09; C09D; C09D163/00; Y; Y10; Y10S; Y10S524/00; Y10S524/904
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
A HOMOGENEOUS PULVERULENT COATING COMPOSITION COMPRISING A MAJOR PROPORTION OF COARSE SOLID PARTICLES HAVING AN AVERAGE PARTICLE SIZE OF FROM 40 TO 500 MICRONS, EACH OF SAID PARTICLES COMPRISING AN INTIMATE MIXTURE OF A REACTIVE GLYCIDYL POLYETHER OF A POLYHYDRIC PHENOL AND AN EPIHALOHYDRIN AND A CURING AGENT THEREFOR, AND A MINOR PROPORTION COMPRISING AT LEAST 0.05% BY WEIGHT OF THE COMPOSITION OF FINE SOLID PARTICLES HAVING AN AVERAGE PARTICLE SIZE OF FROM 0.01 TO 5 MICRONS, SAID FINE SOLID PARTICLES COMPRISING AT LEAST ONE OXIDE OF AT LEAST ONE METAL SELECTED FROM THE GROUP CONSISTING OF SILICON, SODIUM, ALUMINUM, CALCIUM, MAGNESIUM, IRON, TITANIUM, ANTIMONY, AND ZINC.
Claim 2
Dependent Claim
107 words
A HOMOGENEOUS PULVERULENT COATING COMPOSITION COMPRISING A MAJOR PROPORTION OF COARSE SOLID PARTICLES HAVING AN AVERAGE PARTICLE SIZE OF FROM 40 TO 500 MICRONS, EACH OF SAID PARTICLES COMPRISING AN INTIMATE MIXTURE OF A REACTIVE GLYCIDYL POLYETHER OF A POLYHYDRIC PHENOL AND AN EPIHALOHYDRIN AND A CURING AGENT THEREFOR, AND A MINOR PROPORTION COMPRISING AT LEAST 0.05% BY WEIGHT OF THE COMPOSITION OF FINE SOLID PARTICLES HAVING AN AVERAGE PARTICLE SIZE OF FROM 0.01 TO 5 MICRONS, SAID FINE SOLID PARTICLES COMPRISING AT LEAST ONE OXIDE OF AT LEAST ONE METAL SELECTED FROM THE GROUP CONSISTING OF SILICON, SODIUM, ALUMINUM, CALCIUM, MAGNESIUM, IRON, TITANIUM, ANTIMONY, AND ZINC.
References Cited (Backward Citations)
US2779668A
Cited
US2801229A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-06-18 | 1965-12-18 | 1966-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-18 | 1969-12-18 | 1970-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-18 | 1973-12-18 | 1974-06-19 | $7700.00 | Window Closed / Lapsed |