US3281385A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coating compositions of graft copolymers of ammonium salts of unsaturated aliphatic carboxylic acids and butadiene-styrene copolymers and method of making the same
Assignee: Dow Chemical Co
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Filing: 1960-12-21
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Granted: 1966-10-25
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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
2026-10-23 12:57
CPC Classifications
C; C08; C08F; C08F279/00; C08F279/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
34 words
A COMPOSITION COMPRISING AN AQUEOUS DISPERSION OF A GRAFT COPOLYMER CONSISTING OF FROM 0.2 TO 10 PERCENT BY WEIGHT OF AN AMMONIUM SALT OF AN ETHYLENICALLY UNSATURATED ALIPHATIC CARBOXYLIC ACID HAVING THE GENERAL FORMULA:
Claim 2
Dependent Claim
34 words
A COMPOSITION COMPRISING AN AQUEOUS DISPERSION OF A GRAFT COPOLYMER CONSISTING OF FROM 0.2 TO 10 PERCENT BY WEIGHT OF AN AMMONIUM SALT OF AN ETHYLENICALLY UNSATURATED ALIPHATIC CARBOXYLIC ACID HAVING THE GENERAL FORMULA:
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) | 1969-10-24 | 1970-04-25 | 1970-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-24 | 1974-04-25 | 1974-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-24 | 1978-04-25 | 1978-10-25 | $7700.00 | Window Closed / Lapsed |