Patent US2912389A successfully refreshed from Google Patents.
US2912389A
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Polymers of divinylbenzene dioxide
Assignee: Union Carbide Corp
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Filing: 1957-08-08
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Granted: 1959-11-10
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Expires: 1977-08-08
Abstract
No abstract record available.
Inventors
- 👤 Phillips Benjamin
- 👤 Jr Charles W Mcgary
- 👤 Jr Charles T Patrick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:52
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/20; C08G59/22; C08G59/24; C08G59/245; C08G59/02; C08G59/027; C08G59/182; C08G59/184; C08G59/40; C08G59/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
33 words
A CURABLE COMPOSITION COMPRISING DIVINYLBENZENE DIOXIDE AND A POLYFUNCTIONAL AMINE, SAID COMPOSITION CONTAINING FROM ABOUT 0.2 TO 5.0 AMINO HYDROGEN ATOMS OF SAID POLYFUNCTIONAL AMINE FOR EACH EPOXY GROUP OF SAID DIVINYLBENZENE DIOXIDE.
Claim 2
Dependent Claim
33 words
A CURABLE COMPOSITION COMPRISING DIVINYLBENZENE DIOXIDE AND A POLYFUNCTIONAL AMINE, SAID COMPOSITION CONTAINING FROM ABOUT 0.2 TO 5.0 AMINO HYDROGEN ATOMS OF SAID POLYFUNCTIONAL AMINE FOR EACH EPOXY GROUP OF SAID DIVINYLBENZENE DIOXIDE.
References Cited (Backward Citations)
US2712535A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-09 | 1963-05-11 | 1963-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-09 | 1967-05-11 | 1967-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-09 | 1971-05-11 | 1971-11-10 | $7700.00 | Window Closed / Lapsed |