US2959574A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water-soluble reaction composition of hydroxylamine with acrylamide-acrylonitrile copolymer
Assignee: Wyeth Holdings LLC
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Filing: 1958-02-17
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Granted: 1960-11-08
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Expires: 1978-02-17
Abstract
No abstract record available.
Inventors
- 👤 Norman T Woodberry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:40
CPC Classifications
C; C08; C08F; C08F8/00; C08F8/30; C08F8/32; C08F2800/00; C08F2800/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
A POLYACRYLAMIDOXIME WATER-SOLUBLE RESINOUS COMPOSITION OBTAINED BY REACTING A COPOLYMER OF FROM ABOUT 5 WEIGHT PERCENT TO ABOUT 30 WEIGHT PERCENT ACRYLONITRILE AND FROM ABOUT 95 WEIGHT PERCENT TO ABOUT 70 WEIGHT PERCENT ACRYLAMIDE WITH HYDROXYLAMINE, SAID HYDROXYLAMINE BEING EMPLOYED IN AMOUNTS OF FROM 5 MOLE PERCENT TO ABOUT 100 MOLE PERCENT BASED ON THE ACRYLONITRILE PRESENT IN THE COPOLYMER, AT A PH OF BETWEEN 3.8 AND 8.0.
Claim 2
Dependent Claim
68 words
A POLYACRYLAMIDOXIME WATER-SOLUBLE RESINOUS COMPOSITION OBTAINED BY REACTING A COPOLYMER OF FROM ABOUT 5 WEIGHT PERCENT TO ABOUT 30 WEIGHT PERCENT ACRYLONITRILE AND FROM ABOUT 95 WEIGHT PERCENT TO ABOUT 70 WEIGHT PERCENT ACRYLAMIDE WITH HYDROXYLAMINE, SAID HYDROXYLAMINE BEING EMPLOYED IN AMOUNTS OF FROM 5 MOLE PERCENT TO ABOUT 100 MOLE PERCENT BASED ON THE ACRYLONITRILE PRESENT IN THE COPOLYMER, AT A PH OF BETWEEN 3.8 AND 8.0.
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) | 1963-11-08 | 1964-05-09 | 1964-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-08 | 1968-05-09 | 1968-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-08 | 1972-05-09 | 1972-11-08 | $7700.00 | Window Closed / Lapsed |