Patent US2798059A successfully refreshed from Google Patents.
US2798059A
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Compositions comprising an acrylonitrile polymer and an nu-(2-cyanoethyl) acrylamide
Assignee: Wyeth Holdings LLC
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Filing: 1956-03-21
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Granted: 1957-07-02
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Expires: 1976-03-21
Abstract
No abstract record available.
Inventors
- 👤 David C Guth
- 👤 Edward J Kerle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:00
CPC Classifications
C; C08; C08F; C08F220/00; C08F220/02; C08F220/42; C08F220/44; C08F20/00; C08F20/02; C08F20/52; C08F20/54; C08F20/60; C08K; C08K5/00; C08K5/16; C08K5/315
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
39 words
A COMPOSITION OF MATTER COMPRISING (1) A POLYMERIZATION PRODUCT CONTAINING IN THE POLYMER MOLECULES AN AVERAGE OF AT LEAST 75% BY WEIGHT OF COMBINED ACRYLONITRILE AND (2) AT LEAST ONE MEMBER OF THE CLASS CONSISTING OF N-2-CYANOETHYLACRYLAMIDE AND N,N-BIS(2-CYANOETHYL)ACRYLAMIDE.
Claim 2
Dependent Claim
39 words
A COMPOSITION OF MATTER COMPRISING (1) A POLYMERIZATION PRODUCT CONTAINING IN THE POLYMER MOLECULES AN AVERAGE OF AT LEAST 75% BY WEIGHT OF COMBINED ACRYLONITRILE AND (2) AT LEAST ONE MEMBER OF THE CLASS CONSISTING OF N-2-CYANOETHYLACRYLAMIDE AND N,N-BIS(2-CYANOETHYL)ACRYLAMIDE.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-07-01 | 1960-12-31 | 1961-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-01 | 1964-12-31 | 1965-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-01 | 1968-12-31 | 1969-07-02 | $7700.00 | Window Closed / Lapsed |