Patent US2592254A successfully refreshed from Google Patents.
US2592254A
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Monomers and polymers of vinyl carbamic acid derivatives and their preparation
Assignee: Eastman Kodak Co
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Filing: 1948-01-29
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Granted: 1952-04-08
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Expires: 1968-01-29
Abstract
No abstract record available.
Inventors
- 👤 Joseph B Dickey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 03:01
CPC Classifications
C; C08; C08F; C08F226/00; C08F226/02
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
46 words
A METHOD OF PREPARING POLYMERS WHICH COMPRISES HEATING TOGETHER UNDER POLYMERIZING CONDITIONS 80-20 MOL PERCENT OF A MONOMER SELECTED FROM THE GROUP CONSISTING OF VINYL ACETATE. ACRYLONITRILE, METHYL METHACRYLATE, VINYL CHLORIDE, ACRYLIC ACID AND ACRYLAMIDE, AND 20-80 MOL PERCENT OF AN ESTER HAVING THE FOLLOWING FORMULA:
References Cited (Backward Citations)
US2165484A
Cited
US2247495A
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US2273891A
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US2326287A
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US2334476A
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US2395750A
Cited
US2394592A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-04-08 | 1955-10-08 | 1956-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-08 | 1959-10-08 | 1960-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-08 | 1963-10-08 | 1964-04-08 | $7700.00 | Window Closed / Lapsed |