Patent CA722758A successfully refreshed from Google Patents.
Patent US2855388A successfully refreshed from Google Patents.
US2855388A
Expired / Lapsed
US
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Terpolymer systems containing lactone groups
Assignee: Monsanto Chemicals Ltd
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Filing: 1955-01-10
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Granted: 1958-10-07
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Expires: 1975-01-10
Abstract
No abstract record available.
Inventors
- 👤 Earl C Chapin
- 👤 Richard F Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:50
CPC Classifications
C; C08; C08F; C08F16/00; C08F212/00; C08F212/02; C08F212/04; C08F212/06; C08F212/08; C08F220/00; C08F220/02; C08F220/10; C08F220/12; C08F222/00; C08F222/10; C08F222/12; C08F222/14; C09; C09D; C09D129/00; C09D129/02; C09D129/06; C09D129/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
141 words
A TERPOLYMER OF AN UNSATURATED ALCOHOL, A STRYENE AND A DIALKYL ESTER OF A BUTENE DIOIC ACID, THE AMOUNT OF UNSATURATED ALCOHOL IN THE TERPOLYMER VARYING BETWEEN 1 AND 15% BY WEIGHT, THE AMOUNT OF STYRENE COMPONENT VARYING BETWEEN 10 AND 90% BY WEIGHT AND THE AMOUNT OF ESTER COMPONENT VARYING BETWEEN 10 AND 90% BY WEIGHT, THE UNSATURATED ALCOHOL BEING A MEMBER OF THE GROUP CONSISTING OF ALLYL ALCOHOL AND METHALLYL ALCOHOL AND MIXTURES THEROF, THE STYRENE COMPONENT BEING A MEMBER OF THE GROUP CONSISTING OF STYRENE, RING SUBSTITUTED ALKYL STYRENES, RING SUBSTITUTED CHLOROSTYRENES, RING SUBSTITUTED ALKYL CHLOROSTYRENES AND MIXTURES THEROF AND THE ESTER COMPONENT BEING A MEMBER OF THE GROUP CONSISTING OF DIALKYL ESTERS OF MALEIC, FUMARIC, CITRACONIC MESACONIC AND ITACONIC ACIDS AND MIXTURES THEREOF, THE ALKYL GROUPS IN SAID ESTER COMPONENT CONTAINING FROM 1 TO 18 CARBON ATOMS.
Claim 2
Dependent Claim
141 words
A TERPOLYMER OF AN UNSATURATED ALCOHOL, A STRYENE AND A DIALKYL ESTER OF A BUTENE DIOIC ACID, THE AMOUNT OF UNSATURATED ALCOHOL IN THE TERPOLYMER VARYING BETWEEN 1 AND 15% BY WEIGHT, THE AMOUNT OF STYRENE COMPONENT VARYING BETWEEN 10 AND 90% BY WEIGHT AND THE AMOUNT OF ESTER COMPONENT VARYING BETWEEN 10 AND 90% BY WEIGHT, THE UNSATURATED ALCOHOL BEING A MEMBER OF THE GROUP CONSISTING OF ALLYL ALCOHOL AND METHALLYL ALCOHOL AND MIXTURES THEROF, THE STYRENE COMPONENT BEING A MEMBER OF THE GROUP CONSISTING OF STYRENE, RING SUBSTITUTED ALKYL STYRENES, RING SUBSTITUTED CHLOROSTYRENES, RING SUBSTITUTED ALKYL CHLOROSTYRENES AND MIXTURES THEROF AND THE ESTER COMPONENT BEING A MEMBER OF THE GROUP CONSISTING OF DIALKYL ESTERS OF MALEIC, FUMARIC, CITRACONIC MESACONIC AND ITACONIC ACIDS AND MIXTURES THEREOF, THE ALKYL GROUPS IN SAID ESTER COMPONENT CONTAINING FROM 1 TO 18 CARBON ATOMS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-10-06 | 1962-04-07 | 1962-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-06 | 1966-04-07 | 1966-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-06 | 1970-04-07 | 1970-10-07 | $7700.00 | Window Closed / Lapsed |