US3576780A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Processable bisphenol polyester compositions
Assignee: Eastman Kodak Co
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Filing: 1969-03-28
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Granted: 1971-04-27
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Expires: 1989-03-28
Abstract
Abstract THE COMPOSITION OF MATTER COMPRISING BISPHENOL POLYESTER MATERIAL, THE ACID PORTION OF WHICH COMPRISES AT LEAST IN PART A CYCLIC DICARBOXYLIC ACID COMPONENT, BLENDED WITH FROM ABOUT 2 TO ABOUT 30% BY WEIGHT OF TRIARYL PHOSPHATE HAS REDUCED GLASS TRANSITION AND HEAT DISTORTION TEMPERATURES WHICH MAKE THE COMPOSITION MORE READILY PROCESSABLE.
Inventors
- 👤 Winston J Jackson Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:33
CPC Classifications
B; B32; B32B; B32B7/00; B32B7/04; B32B7/12; C; C08; C08K; C08K5/00; C08K5/49; C08K5/51; C08K5/52; C08K5/521; C08K5/523; B32B15/00; B32B15/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-04-26 | 1974-10-26 | 1975-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-26 | 1978-10-26 | 1979-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-26 | 1982-10-26 | 1983-04-27 | $7700.00 | Window Closed / Lapsed |