US3194776A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymeric plasticizers of polyesters of dimethylmalonic acid and a glycol
Assignee: Eastman Kodak Co
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Filing: 1957-06-03
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Granted: 1965-07-13
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Expires: 1977-06-03
Abstract
No abstract record available.
Inventors
- 👤 John R Caldwell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:44
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/02; C08G63/12; C08G63/16; C08G63/20; C08L; C08L57/00
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
26 words
A LINEAR CONDENSATION-TYPE POLYESTER OF A NEOPENTYL GLYCOL AND A DICARBOXYLIC ACID OF WHICH AT LEAST 70 MOLE PERCENT CONSISTS OF A COMPOUND HAVING THE FORMULA:
Claim 2
Dependent Claim
26 words
A LINEAR CONDENSATION-TYPE POLYESTER OF A NEOPENTYL GLYCOL AND A DICARBOXYLIC ACID OF WHICH AT LEAST 70 MOLE PERCENT CONSISTS OF A COMPOUND HAVING THE FORMULA:
Claim 3
Dependent Claim
56 words
A PLASTIC COMPOSITION ESSENTIALLY COMPOSED OF (I) A MEMBER SELECTED FROM THE GROUP OF PLASTICS CONSISTING OF (1) CELLULOSE ALKANOATES WHEREIN THE ALKANOATE RADICALS CONTAIN NO MORE THAN 4 CARBON ATOMS AND (2) POLYMERIZED MONO-ETHYLENICALLY UNSATURATED POLYMERIZABLE ORGANIC COMPOUNDS, AND (II) FROM 5% TO 60% BY WEIGHT OF A POLYESTER OF CLAIM 1 AS A PLASTICIZER.
References Cited (Backward Citations)
GB588833A
Cited
US2483726A
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US2617779A
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US2643989A
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US2720503A
Cited
US2744092A
Cited
US2744078A
Cited
US2859195A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-07-12 | 1969-01-11 | 1969-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-12 | 1973-01-11 | 1973-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-12 | 1977-01-11 | 1977-07-13 | $7700.00 | Window Closed / Lapsed |