Patent US3661828A successfully refreshed from Google Patents.
US3661828A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermoset molding powders employing glycidyl methacrylate and diphenols
Assignee: Ford Motor Co
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Filing: 1970-06-05
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Granted: 1972-05-09
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Expires: 1990-06-05
Abstract
Abstract NOVEL THERMOSETTING RESIN POWDERS WHICH CAN BE MOLDED TO FORM PRODUCTS CHARACTERIZED, IN TENSILE MEASUREMENT, BY HIGH ELONGATION-TO-BREAK, HIGH TENSILE STRENGTH AND MODULUS AND A HIGH GLASS TRANSITION TEMPERATURE ARE PREPARED FROM A MIXTURE OF A PREPOLYMER CONSISTING ESSENTIALLY OF GLYCIDYL METHACRYLATE, METHYL METHACRYLATE, AND METHACRYLONITRILE OR ACRYLONITRILE AND A DIPHENOL CROSSLINKING AGENT.
Inventors
- 👤 John F Fellers
- 👤 Santokh S Labana
- 👤 Seymour X Newman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:36
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/20; C08G59/32; C08G59/3209; C08G59/40; C08G59/62; C08G59/621; Y; Y10; Y10S; Y10S525/00; Y10S525/913
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) | 1975-05-09 | 1975-11-08 | 1976-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-09 | 1979-11-08 | 1980-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-09 | 1983-11-08 | 1984-05-09 | $7700.00 | Window Closed / Lapsed |