US3165487A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coating compositions of graft copolymers of alkali salts of vinylphenyl alpha-aminocarboxylic acids and butadiene-styrene copolymers and method of making the same
Assignee: Dow Chemical Co
•
Filing: 1960-12-21
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Granted: 1965-01-12
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Expires: 1980-12-21
Abstract
No abstract record available.
Inventors
- 👤 Gardner John Berten
- 👤 Harper Billy Gene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:10
CPC Classifications
C; C08; C08F; C08F279/00; C08F279/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
31 words
A COMPOSITION COMPRISING AN AQUEOUS DISPERSION OF A GRAFT COPOLYMER CONSISTING OF A MINOR AMOUNT BY WEIGHT OF AN ALKALI SALT OF A VINYLPHENYL AMINO CARBOXYLIC ACID HAVING THE GENERAL FORMULA:
Claim 2
Dependent Claim
31 words
A COMPOSITION COMPRISING AN AQUEOUS DISPERSION OF A GRAFT COPOLYMER CONSISTING OF A MINOR AMOUNT BY WEIGHT OF AN ALKALI SALT OF A VINYLPHENYL AMINO CARBOXYLIC ACID HAVING THE GENERAL FORMULA:
References Cited (Backward Citations)
US2744836A
Cited
US2754291A
Cited
US2859201A
Cited
FR1101682A
Cited
US2840603A
Cited
US2910445A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-01-12 | 1968-07-13 | 1969-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-01-12 | 1972-07-13 | 1973-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-01-12 | 1976-07-13 | 1977-01-12 | $7700.00 | Window Closed / Lapsed |