Patent US2666044A successfully refreshed from Google Patents.
US2666044A
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US
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Alkyl acrylate/n-hydrocarbon-substituted acrylamide/unsaturated tertiary amino compound copolymers
Assignee: EIDP Inc
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Filing: 1951-03-09
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Granted: 1954-01-12
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Expires: 1971-03-09
Abstract
No abstract record available.
Inventors
- 👤 Willard E Catlin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:52
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C08; C08F; C08F220/00; C08F220/02; C08F220/10; C08F220/12; C08F220/16; C08F220/18; C08F220/1811; C08F220/1812; C08F220/1818; C10M2207/00; C10M2207/28; C10M2207/282; C10M2207/34; C10M2217/00; C10M2217/02; C10M2217/022; C10M2217/023; C10M2217/024; C10M2217/028; C10M2217/04; C10M2217/06; C10M2219/00; C10M2219/02; C10N; C10N2040/00; C10N2040/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
A LUBRICATING OIL-SOLUBLE COPOLYMER, THE POLYMERIC COMPONENTS OF WHICH ESSENTIALLY CONSIST OF, BY WEIGHT OF THE COPOLYMER, 55%-97.5% OF A POLYMERIZED COMPOUND FROM THE GROUP CONSISTING OF THE ACRYLIC AND ALPHA-ALKYL SUBSTITUTED ACRYLIC ESTERS OF SATURATED ALIPHATIC ALCOHOLS CONTAINING FROM 12 TO 18 CARBON ATOMS, INCLUSIVE; 2%-15% OF AN N-ARYL-SUBSTITUTED AMIDE OF AN ACID FROM THE GROUP CONSISTING OF ACRYLIC AND ALPHA-ALKYL SUBSTITUTED ACRYLIC ACIDS, SAID NHYDROCARBON SUBSTITUTENT BEING FREE OF NON-BENZENOID UNSATURATION; AND 0.5%-20% OF A POLYMERIZED ETHYLENICALLY UNSATURATED COMPOUND CONTAINING A BASIC TERTIARY AMINO GROUP AND BEING FREE OF REACTIVE HYDROGENS.
Claim 2
Dependent Claim
93 words
A LUBRICATING OIL-SOLUBLE COPOLYMER, THE POLYMERIC COMPONENTS OF WHICH ESSENTIALLY CONSIST OF, BY WEIGHT OF THE COPOLYMER, 55%-97.5% OF A POLYMERIZED COMPOUND FROM THE GROUP CONSISTING OF THE ACRYLIC AND ALPHA-ALKYL SUBSTITUTED ACRYLIC ESTERS OF SATURATED ALIPHATIC ALCOHOLS CONTAINING FROM 12 TO 18 CARBON ATOMS, INCLUSIVE; 2%-15% OF AN N-ARYL-SUBSTITUTED AMIDE OF AN ACID FROM THE GROUP CONSISTING OF ACRYLIC AND ALPHA-ALKYL SUBSTITUTED ACRYLIC ACIDS, SAID NHYDROCARBON SUBSTITUTENT BEING FREE OF NON-BENZENOID UNSATURATION; AND 0.5%-20% OF A POLYMERIZED ETHYLENICALLY UNSATURATED COMPOUND CONTAINING A BASIC TERTIARY AMINO GROUP AND BEING FREE OF REACTIVE HYDROGENS.
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) | 1957-01-11 | 1957-07-13 | 1958-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-11 | 1961-07-13 | 1962-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-11 | 1965-07-13 | 1966-01-12 | $7700.00 | Window Closed / Lapsed |