Patent US2988524A successfully refreshed from Google Patents.
US2988524A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Copolymer of methyl methacrylate, alkyd resin and modified glycidyl methacrylate andcoating composition comprising same
Assignee: EIDP Inc
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Filing: 1958-06-19
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Granted: 1961-06-13
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Expires: 1978-06-19
Abstract
No abstract record available.
Inventors
- 👤 Robert M Fitch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:02
CPC Classifications
C; C08; C08F; C08F20/00; C08F20/02; C08F20/10; C08F20/34
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
85 words
A COPOLYMER CONTAINING CHEMICALLY COMBINED IN THE POLYMER CHAIN IN EACH 100 PARTS BY WEIGHT THEREOF (A) AT LEAST 30 PARTS BY WEIGHT OF METHYL METHACRYLATE, (B) ABOUT FROM 10 TO 50 PARTS BY WEIGHT OF MONOCARBOXYLIC ACID MODIFIED ALKYD RESIN, SAID RESIN CONTAINING IN CHEMICAL COMBINATION MONOCARBOXYLIC ACID, POLYOL, POLYCARBOXYLIC ACID FREE OF ETHYLENIC UNSATURATION AND ABOUT FROM 1 TO 10% BY WEIGHT OF ETHYLENICALLY UNSATURATED ACID, AND (C) ABOUT FROM 0.2 TO 20 PARTS BY WEIGHT EXCLUSIVE OF AMINO RESIDUE OF THE RADIAL.
Claim 2
Dependent Claim
85 words
A COPOLYMER CONTAINING CHEMICALLY COMBINED IN THE POLYMER CHAIN IN EACH 100 PARTS BY WEIGHT THEREOF (A) AT LEAST 30 PARTS BY WEIGHT OF METHYL METHACRYLATE, (B) ABOUT FROM 10 TO 50 PARTS BY WEIGHT OF MONOCARBOXYLIC ACID MODIFIED ALKYD RESIN, SAID RESIN CONTAINING IN CHEMICAL COMBINATION MONOCARBOXYLIC ACID, POLYOL, POLYCARBOXYLIC ACID FREE OF ETHYLENIC UNSATURATION AND ABOUT FROM 1 TO 10% BY WEIGHT OF ETHYLENICALLY UNSATURATED ACID, AND (C) ABOUT FROM 0.2 TO 20 PARTS BY WEIGHT EXCLUSIVE OF AMINO RESIDUE OF THE RADIAL.
Claim 3
Dependent Claim
22 words
A COATING COMPOSITION WHICH COMPRISES ORGANIC SOLVENT AND AS THE ESSINTIAL FILM-FORMING CONSTITUENTS A COPOLYMER OF CLAIM 1 AND CELLILOSE ACETATE BUTYRATE.
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) | 1964-06-12 | 1964-12-12 | 1965-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-12 | 1968-12-12 | 1969-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-12 | 1972-12-12 | 1973-06-13 | $7700.00 | Window Closed / Lapsed |