US3340327A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fumaric acid-polyoxyalkylene glycoldicyclopentadiene polyesters curable with vinyl monomer and mixtures thereof
Assignee: DeSoto Inc
•
Filing: 1961-03-13
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Granted: 1967-09-05
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Expires: 1981-03-13
Abstract
No abstract record available.
Inventors
- 👤 Spellberg Norman
- 👤 John W Lorimer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:20
CPC Classifications
C; C09; C09D; C09D167/00; C09D167/06; C08; C08G; C08G63/00; C08G63/66; C08G63/668; C08G63/676; C08L; C08L67/00; C08L67/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
IN COMBINATION, RESINOUS POLYESTER CURABLE WITH STYRENE IN THE PRESENCE OF AIR AND CONSISTING ESSENTIALLY OF THE HEAT-REACTION PRODUCT OF ETHYLENICALLY UNSATURATED DICARBOXYLIC ACID COMPRISING A MAJOR MOLAR PROPORTION OF FUMARIC ACID, GLYCOL COMPRISING A MAJOR MOLAR PROPORTION OF POLYOXALKYLENE GLYCOL HAVING A MOLECULAR WEIGHT UP TO ABOUT 1200, AND DIENE COMPRISING A MAJOR MOLAR PROPORTION OF DICYCLOPENTADIENE IN AN AMOUNT PROVIDING 0.2-0.6 MOL OF DICYCLOPENTADIENE PER MOL OF FUMARIC ACID AND AN ETHYLENICALLY UNSATURATED MONOMER CAPABLE OF COPOLYMERIZING WITH SAID POLYESTER.
Claim 2
Dependent Claim
82 words
IN COMBINATION, RESINOUS POLYESTER CURABLE WITH STYRENE IN THE PRESENCE OF AIR AND CONSISTING ESSENTIALLY OF THE HEAT-REACTION PRODUCT OF ETHYLENICALLY UNSATURATED DICARBOXYLIC ACID COMPRISING A MAJOR MOLAR PROPORTION OF FUMARIC ACID, GLYCOL COMPRISING A MAJOR MOLAR PROPORTION OF POLYOXALKYLENE GLYCOL HAVING A MOLECULAR WEIGHT UP TO ABOUT 1200, AND DIENE COMPRISING A MAJOR MOLAR PROPORTION OF DICYCLOPENTADIENE IN AN AMOUNT PROVIDING 0.2-0.6 MOL OF DICYCLOPENTADIENE PER MOL OF FUMARIC ACID AND AN ETHYLENICALLY UNSATURATED MONOMER CAPABLE OF COPOLYMERIZING WITH SAID POLYESTER.
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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) | 1970-09-04 | 1971-03-06 | 1971-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-04 | 1975-03-06 | 1975-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-04 | 1979-03-06 | 1979-09-05 | $7700.00 | Window Closed / Lapsed |