US2957853A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Terpolymer systems containing carboxyl groups and hydroxyl groups
Assignee: Monsanto Chemicals Ltd
•
Filing: 1956-06-20
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Granted: 1960-10-25
•
Expires: 1976-06-20
Abstract
No abstract record available.
Inventors
- 👤 Earl C Chapin
- 👤 Richard F Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:20
CPC Classifications
C; C08; C08F; C08F218/00; C08F218/02; C08F218/04; C08F16/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
A TERPOLYMER OF MONOMERS CONSISTING OF (1) 1-40 WEIGHT PERCENT OF AN ALLYL ALCOHOL COMPOUND OF THE GROUP CONSISTING OF ALLYL ALCOHOL, METHALLYL ALCOHOL AND MIXTURES THEREOF, (2) 30-95 WEIGHT PERCENT OF A VINYL ESTER OF A 1-20 CARBON ATOM MONOCARBOXYLIC ACID THAT IS FREE OF OLEFINIC AND ACETYLENIC UNSATURATION, AND (3) 1-50 WEIGHT PERCENT OF AN ALPHA,BETA-ETHYLENICALLY UNSATURATED MONOCARBOXYLIC ACID.
Claim 2
Dependent Claim
61 words
A TERPOLYMER OF MONOMERS CONSISTING OF (1) 1-40 WEIGHT PERCENT OF AN ALLYL ALCOHOL COMPOUND OF THE GROUP CONSISTING OF ALLYL ALCOHOL, METHALLYL ALCOHOL AND MIXTURES THEREOF, (2) 30-95 WEIGHT PERCENT OF A VINYL ESTER OF A 1-20 CARBON ATOM MONOCARBOXYLIC ACID THAT IS FREE OF OLEFINIC AND ACETYLENIC UNSATURATION, AND (3) 1-50 WEIGHT PERCENT OF AN ALPHA,BETA-ETHYLENICALLY UNSATURATED MONOCARBOXYLIC ACID.
References Cited (Backward Citations)
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US2557266A
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US2441515A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-10-25 | 1964-04-25 | 1964-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-25 | 1968-04-25 | 1968-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-25 | 1972-04-25 | 1972-10-25 | $7700.00 | Window Closed / Lapsed |