US3565868A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymers of unsymmetrical disubstituted hydrazine
Assignee: Ashland LLC
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Filing: 1968-03-19
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Granted: 1971-02-23
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Expires: 1988-03-19
Abstract
Abstract POLYMERS COMPRISING THE REACTION PRODUCT OF: (A) UNSYMMETRICAL DISUBSTITUTED HYDRAZINE AND (B) A MATERIAL SELECTED FROM THE GROUP CONSISTING OF: (1) EPOXY-ESTERS HAVING AT LEAST ONE REACTIVE EPOXIDE GROUP AND AT LEAST ONE REACTIVE CARBOXYLIC ACID ESTER GROUP, AND (2) MIXTURES OF POLYEPOXIDES HAVING A PLURALITY OF REACTIVE EPOXIDE GROUPS AND POLYESTERS HAVING A PLURALITY OF REACTIVE ESTER GROUPS. THESE POLYMERS FIND UTILITY AS DECORATIVE AND/OR PROTECTIVE COATINGS WHEN APPLIED TO SUBSTRATES.
Inventors
- 👤 Edward A Sedor
- 👤 Robert C Slagel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:11
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/4007; C08G59/4014; C08G59/4035; C08G65/00; C08G65/02; C08G65/26; C08G65/2618; C08G65/2621; C08G65/2624; C08G73/00; C08G73/06; C08G73/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-22 | 1974-08-24 | 1975-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-22 | 1978-08-24 | 1979-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-22 | 1982-08-24 | 1983-02-23 | $7700.00 | Window Closed / Lapsed |