US2985616A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Curable epoxy compositions and resins made therefrom
Assignee: Union Carbide Corp
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Filing: 1957-07-30
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Granted: 1961-05-23
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Expires: 1977-07-30
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
2026-10-24 03:33
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/20; C08G59/22; C08G59/24; C08G59/40; C08G59/42; C08G59/4284
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
59 words
A CURABLE COMPOSITION COMPRISING DICYCLOPENTADIENE DIOXIDE, 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 0.16 TO 5.0 CARBOXY EQUIVALENTS OF SAID ANHYDRIDE AND UP TO 2.0 HYDROXYL EQUIVALENTS OF SAID POLYOL FOR EACH EPOXY EQUIVALENT OF SAILD DICYCLOPENTADIENE DIOXIDE.
Claim 2
Dependent Claim
59 words
A CURABLE COMPOSITION COMPRISING DICYCLOPENTADIENE DIOXIDE, 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 0.16 TO 5.0 CARBOXY EQUIVALENTS OF SAID ANHYDRIDE AND UP TO 2.0 HYDROXYL EQUIVALENTS OF SAID POLYOL FOR EACH EPOXY EQUIVALENT OF SAILD DICYCLOPENTADIENE DIOXIDE.
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) | 1964-05-22 | 1964-11-21 | 1965-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-22 | 1968-11-21 | 1969-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-22 | 1972-11-21 | 1973-05-23 | $7700.00 | Window Closed / Lapsed |