US3738970A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyvinyl chlorendates
Assignee: Eastman Kodak Co
•
Filing: 1972-07-24
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Granted: 1973-06-12
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Expires: 1992-07-24
Abstract
Abstract POLYVINYL CHLORENDATE OF A WIDE RANGE OF COMBINED CHLORENDYL AND METHOD OF MAKING POLYVINYL CHLORENDATES BY REACTING POLYVINYL ALCOHOL WITH UP TO ABOUT 125 PERCENT OF THE STOICHIOMETRIC AMOUNT OF CHLORENDIC ANHYDRIDE.
Inventors
- 👤 D Cimino
- 👤 J Mench
- 👤 L Pancoast
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:15
CPC Classifications
C; C08; C08F; C08F8/00; C08F8/14; C08F8/18
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) | 1976-06-11 | 1976-12-11 | 1977-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-11 | 1980-12-11 | 1981-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-11 | 1984-12-11 | 1985-06-12 | $7700.00 | Window Closed / Lapsed |