Patent US3823219A successfully refreshed from Google Patents.
US3823219A
Expired / Lapsed
US
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Method of producing glass reinforced plastic articles
Assignee: Owens Corning
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Filing: 1973-02-27
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Granted: 1974-07-09
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Expires: 1993-02-27
Abstract
Abstract GLASS FIBERS HAVING A COATING OF PLASTIC MATERIAL THEREON ARE COATED WITH AN ESTER OF A POLYGLYCOL AND AN UNSATURATED FATTY ACID. THE FIBERS ARE CHOPPED, MIXED WITH A MATRIX RESIN FORMING MATERIAL AND MOLDED UNDER SUFFICIENT HEAT AND PRESSURE TO HYDROLYZE THE LUBRICANT COATING.
Inventors
- 👤 J Ward
- 👤 B Garick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:52
CPC Classifications
B; B29; B29B; B29B9/00; B29B9/12; B29B9/14; C; C08; C08J; C08J5/00; C08J5/04; C08J5/06; C08J5/08; Y; Y10; Y10S; Y10S264/00; Y10S264/53; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249924; Y10T428/24994; Y10T428/249948; Y10T428/29; Y10T428/2904; Y10T428/2907
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) | 1977-07-08 | 1978-01-07 | 1978-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-08 | 1982-01-07 | 1982-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-08 | 1986-01-07 | 1986-07-09 | $7700.00 | Window Closed / Lapsed |