Patent US2765296A successfully refreshed from Google Patents.
US2765296A
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Polymers of butadiene dimer epoxides
Assignee: Columbia Southern Chemical Corp
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Filing: 1950-12-08
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Granted: 1956-10-02
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Expires: 1970-12-08
Abstract
No abstract record available.
Inventors
- 👤 Strain Franklin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:00
CPC Classifications
C; C08; C08G; C08G65/00; C08G65/02; C08G65/04; C08G65/06; C08G65/14; C08F; C08F246/00; C08G59/00; C08G59/18; C08G59/20; C08G59/22; C08G59/24; C08G59/32; C08G59/3209
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
35 words
A POLYMER OF AN EPOXIDE OF 4-VINYLCYCLOHEXENE SELECTED FROM THE GROUP CONSISTING OF HOMOPOLYMERS OF 4 - VINYLCLOHEXENE EPOXIDES AND COPOLYMERS FORMED BY OLEFINIC POLYMERIZATION OF 4-VINYLCYCLOHEXENE MONOEPXOIDE AND A POLYMERIZABLE ETHYLENICALLY UNSATRATED EPOXY-FREE COMPOUND.
Claim 2
Dependent Claim
35 words
A POLYMER OF AN EPOXIDE OF 4-VINYLCYCLOHEXENE SELECTED FROM THE GROUP CONSISTING OF HOMOPOLYMERS OF 4 - VINYLCLOHEXENE EPOXIDES AND COPOLYMERS FORMED BY OLEFINIC POLYMERIZATION OF 4-VINYLCYCLOHEXENE MONOEPXOIDE AND A POLYMERIZABLE ETHYLENICALLY UNSATRATED EPOXY-FREE COMPOUND.
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) | 1959-10-02 | 1960-04-02 | 1960-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-02 | 1964-04-02 | 1964-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-02 | 1968-04-02 | 1968-10-02 | $7700.00 | Window Closed / Lapsed |