US2592560A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyepoxide compositions
Assignee: Celanese Coatings Co
•
Filing: 1945-11-02
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Granted: 1952-04-15
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Expires: 1965-11-02
Abstract
No abstract record available.
Inventors
- 👤 Greenlee Sylvan Owen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:31
CPC Classifications
C; C07; C07C; C07C31/00; C07C31/18; C07C31/26; C08; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/62; C08G59/621
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
43 words
A COMPLEX POLYMERIC RESINOUS POLYEPOXIDE COMPOSITION RESULTING FROM THE DIRECT ADDITIONREACTION OF DIHYDRIC PHENOLS FREE FROM REACTIVE GROUPS OTHER THAN PHENOLS FREE FROM REACTIVE ALIPHATIC DIEPOXIDES FREE FROM RELATRIVE GROUP OTHER THAN EPOXIDE AND ALIPHATIC HYDROXYL GROUPS AND HAVING THE FOLLOWING GENERAL FORMULA:
Claim 2
Dependent Claim
43 words
A COMPLEX POLYMERIC RESINOUS POLYEPOXIDE COMPOSITION RESULTING FROM THE DIRECT ADDITIONREACTION OF DIHYDRIC PHENOLS FREE FROM REACTIVE GROUPS OTHER THAN PHENOLS FREE FROM REACTIVE ALIPHATIC DIEPOXIDES FREE FROM RELATRIVE GROUP OTHER THAN EPOXIDE AND ALIPHATIC HYDROXYL GROUPS AND HAVING THE FOLLOWING GENERAL FORMULA:
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) | 1955-04-15 | 1955-10-15 | 1956-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-15 | 1959-10-15 | 1960-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-15 | 1963-10-15 | 1964-04-15 | $7700.00 | Window Closed / Lapsed |