Patent US3000848A successfully refreshed from Google Patents.
US3000848A
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US
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Composition comprising bis(2,3-epoxycyclopentyl) ether, a polycarboxylic acid anhydride and a polyol, and cured product thereof
Assignee: Union Carbide Corp
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Filing: 1956-12-20
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Granted: 1961-09-19
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Expires: 1976-12-20
Abstract
No abstract record available.
Inventors
- 👤 Jr Charles W Mcgary
- 👤 Jr Charles T Patrick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:40
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/42; C08G59/4284; C08G59/20; C08G59/22; C08G59/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
60 words
A CURABLE COMPOSITION COMPRISING BIS(2,3-EPOXYCYCLOPENTYL) ETHER, A POLYCARBOXYLIC ACID ANHYDRIDE, AND A POLYOL SELECTED FROM THE GROUP CONSISTING OF POLYHYDRIC ALCOHOLS AND POLYHYDRIC PHENOLS, IN SUCH RELATIVE AMOUNTS SO AS TO PROVIDE FROM ABOUT 0.33 TO 4.0 CARBOXY EQUIVALENTS OF SAID POLYCARBOXYLIC ACID ANHYDRIDE AND UP TO 3.0 HYDROXYL EQUIVALENTS OF SAID POLYOL PER EPOXY EQUIVALENT OF SAID BIS(2,3-EPOXYCYCLOPENTYL) ETHER.
Claim 2
Dependent Claim
60 words
A CURABLE COMPOSITION COMPRISING BIS(2,3-EPOXYCYCLOPENTYL) ETHER, A POLYCARBOXYLIC ACID ANHYDRIDE, AND A POLYOL SELECTED FROM THE GROUP CONSISTING OF POLYHYDRIC ALCOHOLS AND POLYHYDRIC PHENOLS, IN SUCH RELATIVE AMOUNTS SO AS TO PROVIDE FROM ABOUT 0.33 TO 4.0 CARBOXY EQUIVALENTS OF SAID POLYCARBOXYLIC ACID ANHYDRIDE AND UP TO 3.0 HYDROXYL EQUIVALENTS OF SAID POLYOL PER EPOXY EQUIVALENT OF SAID BIS(2,3-EPOXYCYCLOPENTYL) ETHER.
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) | 1964-09-18 | 1965-03-20 | 1965-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-18 | 1969-03-20 | 1969-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-18 | 1973-03-20 | 1973-09-19 | $7700.00 | Window Closed / Lapsed |