US3207816A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High molecular weight unsaturated polyester resins containing an interpolymer of an alpha, beta-unsaturated dicarboxylic acid anhydride and a monoolefin with a terminal methylene group
Assignee: Wyeth Holdings LLC
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Filing: 1960-12-09
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Granted: 1965-09-21
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Expires: 1980-12-09
Abstract
No abstract record available.
Inventors
- 👤 Charles H Dugliss
- 👤 Charles G Laube
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:27
CPC Classifications
C; C08; C08L; C08L67/00; C08L67/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
A REACTIVE, LINEAR ETHYLENICALLY UNSATURATED POLYESTER RESIN WHICH COMPRISES THE REACTION PRODUCT OF (1) AN ETHYLENICALLY UNSATURATED POLYESTER RESIN PREPARED BY ESTERIFYING AN A,B-ETHYLENICALLY UNSATURATED DICAROXYLIC ACID WITH A SATURATED ALIPHATIC POLYOL, AND (2) AN INTERPOLYMER OF AN A,B-ETHYLENICALLY UNSATURATED DICARBOXYLIC ACID ANHYDRIDE AND A MONOOLEFIN HAVING A TERMAINAL METHYLENE GROUP, WHEREIN (2) IS PRESENT IN AN AMOUNT OF FROM ABOUT 0.05 TO ABOUT 10% BY WEIGHT, BASED ON THE TOTAL WEIGHT OF RESIN-FORMING COMPONENTS.
Claim 2
Dependent Claim
75 words
A REACTIVE, LINEAR ETHYLENICALLY UNSATURATED POLYESTER RESIN WHICH COMPRISES THE REACTION PRODUCT OF (1) AN ETHYLENICALLY UNSATURATED POLYESTER RESIN PREPARED BY ESTERIFYING AN A,B-ETHYLENICALLY UNSATURATED DICAROXYLIC ACID WITH A SATURATED ALIPHATIC POLYOL, AND (2) AN INTERPOLYMER OF AN A,B-ETHYLENICALLY UNSATURATED DICARBOXYLIC ACID ANHYDRIDE AND A MONOOLEFIN HAVING A TERMAINAL METHYLENE GROUP, WHEREIN (2) IS PRESENT IN AN AMOUNT OF FROM ABOUT 0.05 TO ABOUT 10% BY WEIGHT, BASED ON THE TOTAL WEIGHT OF RESIN-FORMING COMPONENTS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-20 | 1969-03-22 | 1969-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-20 | 1973-03-22 | 1973-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-20 | 1977-03-22 | 1977-09-21 | $7700.00 | Window Closed / Lapsed |