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Patent US2964501A successfully refreshed from Google Patents.
US2964501A
Expired / Lapsed
US
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Glycol carbonate addition polymers
Assignee: Honeywell Safety Products USA Inc
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Filing: 1960-04-13
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Granted: 1960-12-13
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Expires: 1980-04-13
Abstract
No abstract record available.
Inventors
- 👤 George M J Sarofeen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:01
CPC Classifications
C; C08; C08F; C08F18/00; C08F18/02; C08F18/04; C08F18/08; Y; Y10; Y10S; Y10S260/00; Y10S260/15; Y10S359/00; Y10S359/90; Y10S425/00; Y10S425/044; Y10S425/808; Y10S524/00; Y10S524/91; Y10S524/913
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
A TERPOLYMER OF (1) 78-98% OF AN ESTER OF A GLYCOL WHICH AN ACID ESTER OF A MONOHYDRIC ALCOHOL CONTAINING AT LEAST ONE ALIPHATICALLY UNSATURATED CARBON TO CARBON DOUBLE BOND AND CARBONIC ACID IN WHICH BOTH HYDROXY GROUP OF THE GLYCOL ARE ESTERIFIED WIT THE ACID ESTER, (2) 1-20% OF A DISTER OF A MONOHYDRIC ALCOOL CONTAINING AT LEAST ONE ALIPHATICALLY UNSATURATED CARBON TO CARBON DOUBLE BOND WITH A PHTHALIC ACID, AND (3) 0.25-10% OF A DIALKYL ESTER OF AN ALKENEDIOIC ACID SELECTED FROM THE GROUP CONSISTING OF MALEIC ACID, FUMARIC ACID, ITACONIC ACID, AND CITRACONIC ACID.
Claim 2
Dependent Claim
97 words
A TERPOLYMER OF (1) 78-98% OF AN ESTER OF A GLYCOL WHICH AN ACID ESTER OF A MONOHYDRIC ALCOHOL CONTAINING AT LEAST ONE ALIPHATICALLY UNSATURATED CARBON TO CARBON DOUBLE BOND AND CARBONIC ACID IN WHICH BOTH HYDROXY GROUP OF THE GLYCOL ARE ESTERIFIED WIT THE ACID ESTER, (2) 1-20% OF A DISTER OF A MONOHYDRIC ALCOOL CONTAINING AT LEAST ONE ALIPHATICALLY UNSATURATED CARBON TO CARBON DOUBLE BOND WITH A PHTHALIC ACID, AND (3) 0.25-10% OF A DIALKYL ESTER OF AN ALKENEDIOIC ACID SELECTED FROM THE GROUP CONSISTING OF MALEIC ACID, FUMARIC ACID, ITACONIC ACID, AND CITRACONIC ACID.
References Cited (Backward Citations)
GB782507A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-13 | 1964-06-13 | 1964-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-13 | 1968-06-13 | 1968-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-13 | 1972-06-13 | 1972-12-13 | $7700.00 | Window Closed / Lapsed |