Patent US3083172A successfully refreshed from Google Patents.
US3083172A
Expired / Lapsed
US
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Graft copolymer of an acrylic ester with poly(vinyl acetate)
Assignee: Rohm and Haas Co
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Filing: 1959-02-26
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Granted: 1963-03-26
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Expires: 1979-02-26
Abstract
No abstract record available.
Inventors
- 👤 Scott Joseph David
- 👤 Dorothy E Madge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:57
CPC Classifications
C; C08; C08F; C08F263/00; C08F263/02; C08F263/04; C09; C09D; C09D131/00; C09D131/02; C09D131/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
53 words
THE METHOD WHICH COMPRISES ADDING AN EMULSIFIER SELECTED FROM THE GROUP CONSISTING OF ANIONIC EMULSIFIERS AND NON-IONIC EMULSIFIERS, A 75% TO 90% HYDROLYZED POLYVINYL ACETATE, AND MONOETHYLENICALLY UNSATURATED MOLECULES COMPRISING AT LEAST ONE ENTER ONE ESTER OF A SATURATED MONOHYDRIC ALCOHOL HAVING 1 TO 18 CARBON ATOMS AND AN ACID OF THE FORMULA
Claim 2
Independent Claim
53 words
THE METHOD WHICH COMPRISES ADDING AN EMULSIFIER SELECTED FROM THE GROUP CONSISTING OF ANIONIC EMULSIFIERS AND NON-IONIC EMULSIFIERS, A 75% TO 90% HYDROLYZED POLYVINYL ACETATE, AND MONOETHYLENICALLY UNSATURATED MOLECULES COMPRISING AT LEAST ONE ENTER ONE ESTER OF A SATURATED MONOHYDRIC ALCOHOL HAVING 1 TO 18 CARBON ATOMS AND AN ACID OF THE FORMULA
References Cited (Backward Citations)
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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) | 1966-03-25 | 1966-09-24 | 1967-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-25 | 1970-09-24 | 1971-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-25 | 1974-09-24 | 1975-03-26 | $7700.00 | Window Closed / Lapsed |