US3245932A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water-soluble 2-dimethylamino-ethanol salts of (c1-c2) alkyl acrylate/acrylic acid or methacrylic acidhydroxyalkyl-substituted acrylate or methacrylate copolymers and method of making them
Assignee: Rohm and Haas Co
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Filing: 1965-05-12
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Granted: 1966-04-12
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Expires: 1985-05-12
Abstract
No abstract record available.
Inventors
- 👤 Frank J Glavis
- 👤 Eugene A Hamori
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:57
CPC Classifications
C; C09; C09D; C09D133/00; C09D133/04; C09D133/06; C09D133/062; C09D133/066; C08; C08L; C08L61/00; C08L61/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
58 words
AS A COMPOSITION OF MATTER, WATER, A WATER-SOLUBLE SALT OF 2-(DIMETHYLAMINO)-ETHANOL WITH A WATER-INSOLUBLE COPOLYMER, HAVING A MOLECULAR WEIGHT OF ABOUT 50,000 TO 20,000, OF A MIXTURE OF COPOLYMERIZABLE MONOMERS SELECTED FROM THE GROUP CONSISTING OF (1) MIXTURES CONSISTING OF (A) AT LEAST ONE (C1-C2)-ALKYL ACRYLATE, (B) 1 TO 4% BY WEIGHT OF AN ACID OF THE FORMULA
Claim 2
Dependent Claim
58 words
AS A COMPOSITION OF MATTER, WATER, A WATER-SOLUBLE SALT OF 2-(DIMETHYLAMINO)-ETHANOL WITH A WATER-INSOLUBLE COPOLYMER, HAVING A MOLECULAR WEIGHT OF ABOUT 50,000 TO 20,000, OF A MIXTURE OF COPOLYMERIZABLE MONOMERS SELECTED FROM THE GROUP CONSISTING OF (1) MIXTURES CONSISTING OF (A) AT LEAST ONE (C1-C2)-ALKYL ACRYLATE, (B) 1 TO 4% BY WEIGHT OF AN ACID OF THE 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) | 1969-04-11 | 1969-10-11 | 1970-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-11 | 1973-10-11 | 1974-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-11 | 1977-10-11 | 1978-04-12 | $7700.00 | Window Closed / Lapsed |