Patent US3546177A successfully refreshed from Google Patents.
US3546177A
Expired / Lapsed
US
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Polyesters containing sterically hindered trialkyl phosphates
Assignee: Eastman Kodak Co
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Filing: 1968-03-07
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Granted: 1970-12-08
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Expires: 1988-03-07
Abstract
No abstract record available.
Inventors
- 👤 Charles J Kibler
- 👤 Frederick W Voigt Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:02
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/78; C08G63/82; C08G63/87; C08K; C08K5/00; C08K5/49; C08K5/51; C08K5/52; C08K5/521
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3404121A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-12-07 | 1974-06-08 | 1974-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-07 | 1978-06-08 | 1978-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-07 | 1982-06-08 | 1982-12-08 | $7700.00 | Window Closed / Lapsed |