US2806018A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nu-subistuted acrylamide and polymerization products thereof
Assignee: Wyeth Holdings LLC
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Filing: 1954-07-09
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Granted: 1957-09-10
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Expires: 1974-07-09
Abstract
No abstract record available.
Inventors
- 👤 John A Price
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:47
CPC Classifications
C; C08; C08F; C08F20/00; C08F20/62; C08F220/00; C08F220/02; C08F220/42; C08F220/44
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
A PRODUCT COMPRISING A TERNARY POLYMER OF COPOLYMERIZABLE INGREDIENTS INCLUDING (1) ACRYLONITRILE, (2) N3-BIS(2''-HYDROXYETHYL) AMINOPROPYLACRYLAMIDE AND (3) AT LEAST ONE OTHER DIFFERENT ETHYLENICALLY UNSATURATED SUBSTANCE INCLUDING METHYL ACRYLATE, THE ACRYLONITRILE OF (1) CONSTITUTING AT LEAST ABOUT 70% BY WEIGHT OF THE TOTAL AMOUNT OF (1) AND (2) AND (3), THE COMPOUND OF (2), CONSTITUTING FROM ABOUT 1% TO ABOUT 20% BY WEIGHT OF THE TOTAL AMOUNT OF (1), (2) AND (3), AND THE SUBSTANCE OF (3) CONSTITUTING THE REMAIDER.
Claim 2
Dependent Claim
79 words
A PRODUCT COMPRISING A TERNARY POLYMER OF COPOLYMERIZABLE INGREDIENTS INCLUDING (1) ACRYLONITRILE, (2) N3-BIS(2''-HYDROXYETHYL) AMINOPROPYLACRYLAMIDE AND (3) AT LEAST ONE OTHER DIFFERENT ETHYLENICALLY UNSATURATED SUBSTANCE INCLUDING METHYL ACRYLATE, THE ACRYLONITRILE OF (1) CONSTITUTING AT LEAST ABOUT 70% BY WEIGHT OF THE TOTAL AMOUNT OF (1) AND (2) AND (3), THE COMPOUND OF (2), CONSTITUTING FROM ABOUT 1% TO ABOUT 20% BY WEIGHT OF THE TOTAL AMOUNT OF (1), (2) AND (3), AND THE SUBSTANCE OF (3) CONSTITUTING THE REMAIDER.
References Cited (Backward Citations)
US2649438A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-09-09 | 1961-03-11 | 1961-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-09 | 1965-03-11 | 1965-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-09 | 1969-03-11 | 1969-09-10 | $7700.00 | Window Closed / Lapsed |