US3413188A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glass fiber-wood laminates and methods of producing such laminates
Assignee: Westinghouse Electric Corp
•
Filing: 1963-06-14
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Granted: 1968-11-26
•
Expires: 1983-06-14
Abstract
No abstract record available.
Inventors
- 👤 John K Allen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:37
CPC Classifications
B; B29; B29C; B29C70/00; B29C70/003; B29K; B29K2309/00; B29K2309/08; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1039; Y10T428/00; Y10T428/26; Y10T428/269; Y10T428/31504; Y10T428/31551; Y10T428/31616; Y10T428/3162; Y10T428/31786; Y10T428/3179
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
A LAMINATED STRUCTURE COMPRISING A LAYER OF FIBER GLASS HAVING A THICKNESS LESS THAN ABOUT 40 MILS BONDED TO A WOODY SUBSTRATE BY A CURED STYRENATED-UNSATURATED POLYESTER RESIN WHEREIN THE POLYESTER IS DERIVED FROM THE REACTION OF A DIHYDRIC ALCOHOL AND A DIBASIC ACID, AT LEAST ABOUT 25%, BY WEIGHT, OF SAID DIBASIC ACID BEING UNSATURATED AND THE RATIO OF STYRENE TO POLYESTER BEING IN THE RANGE OF FROM 15:85 TO 65:35 PARTS BY WEIGHT, CATALYZED WITH AT LEAST ABOUT 0.25 PART OF A MIXTURE OF DICUMYL PEROXIDE AND BENZOYL PEROXIDE PER 100 PARTS OF RESIN AND HAVING A FIBER GLASS TO RESIN RATIO IN THE RANGE OF 1:6 TO 1:1 ON A WEIGHT BASIS AND A TEXTURED LAYER CONSISTING ESSENTIALLY OF CURED POLYESTER RESIN OVERLYING THE FIBER GLASS.
Claim 2
Dependent Claim
129 words
A LAMINATED STRUCTURE COMPRISING A LAYER OF FIBER GLASS HAVING A THICKNESS LESS THAN ABOUT 40 MILS BONDED TO A WOODY SUBSTRATE BY A CURED STYRENATED-UNSATURATED POLYESTER RESIN WHEREIN THE POLYESTER IS DERIVED FROM THE REACTION OF A DIHYDRIC ALCOHOL AND A DIBASIC ACID, AT LEAST ABOUT 25%, BY WEIGHT, OF SAID DIBASIC ACID BEING UNSATURATED AND THE RATIO OF STYRENE TO POLYESTER BEING IN THE RANGE OF FROM 15:85 TO 65:35 PARTS BY WEIGHT, CATALYZED WITH AT LEAST ABOUT 0.25 PART OF A MIXTURE OF DICUMYL PEROXIDE AND BENZOYL PEROXIDE PER 100 PARTS OF RESIN AND HAVING A FIBER GLASS TO RESIN RATIO IN THE RANGE OF 1:6 TO 1:1 ON A WEIGHT BASIS AND A TEXTURED LAYER CONSISTING ESSENTIALLY OF CURED POLYESTER RESIN OVERLYING THE FIBER GLASS.
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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) | 1971-11-26 | 1972-05-27 | 1972-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-26 | 1976-05-27 | 1976-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-26 | 1980-05-27 | 1980-11-26 | $7700.00 | Window Closed / Lapsed |