US3336259A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aromatic polyol cross-linked thermoset resin compositions
Assignee: Dow Chemical Co
•
Filing: 1964-02-05
•
Granted: 1967-08-15
•
Expires: 1984-02-05
Abstract
No abstract record available.
Inventors
- 👤 Robert L Zimmerman
- 👤 Willard E Alexander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:31
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/02; C08G63/12; C08G63/123; C08G63/133; C08F; C08F8/00; C08F8/30; C08K; C08K5/00; C08K5/0008; C08K5/0025; C08F2800/00; C08F2800/20; C08F2810/00; C08F2810/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
52 words
COMPOSITION COMPRISING A COPOLYMER OF A MONOVINYLIDENE AROMATIC COMPOUND OF THE BENZENE SERIES AND AN A,B-UNSTAURATED CYCLIC ANHYDRIDE, AND AN AROMATIC POLYOL CURING AGENT CONTAINING TWO OR MORE HYDROXYL GROUPS, AT LEAST ONE OF WHICH IS NONPHENOLIC AND IN WHICH THE RATIO OF ALIPHATIC TO AROMATIC CARBONS IS NOT GREATER THAN 3:2.
Claim 2
Dependent Claim
52 words
COMPOSITION COMPRISING A COPOLYMER OF A MONOVINYLIDENE AROMATIC COMPOUND OF THE BENZENE SERIES AND AN A,B-UNSTAURATED CYCLIC ANHYDRIDE, AND AN AROMATIC POLYOL CURING AGENT CONTAINING TWO OR MORE HYDROXYL GROUPS, AT LEAST ONE OF WHICH IS NONPHENOLIC AND IN WHICH THE RATIO OF ALIPHATIC TO AROMATIC CARBONS IS NOT GREATER THAN 3:2.
References Cited (Backward Citations)
US2912413A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-08-14 | 1971-02-13 | 1971-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-14 | 1975-02-13 | 1975-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-14 | 1979-02-13 | 1979-08-15 | $7700.00 | Window Closed / Lapsed |