US2582055A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Improved method for polymerizing vinyl acetate in tertiary butyl alcohol
Assignee: Eastman Kodak Co
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Filing: 1948-04-28
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Granted: 1952-01-08
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Expires: 1968-04-28
Abstract
No abstract record available.
Inventors
- 👤 Louis M Minsk
- 👤 Erle W Taylor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:58
CPC Classifications
C; C08; C08F; C08F18/00; C08F18/02; C08F18/04; C08F18/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
31 words
A PROCESS FOR PREPARING POLYVINYL ACETATE OF HIGH MOLECULAR WEIGHT WHICH CONSISTS IN HEATING A SOLUTION OF VINYL ACETATE IN TERTIARY BUTYL ALCOHOL IN THE PRESENCE OF A PEROXIDE POLYMERIZATION CATALYST.
Claim 2
Dependent Claim
31 words
A PROCESS FOR PREPARING POLYVINYL ACETATE OF HIGH MOLECULAR WEIGHT WHICH CONSISTS IN HEATING A SOLUTION OF VINYL ACETATE IN TERTIARY BUTYL ALCOHOL IN THE PRESENCE OF A PEROXIDE POLYMERIZATION CATALYST.
References Cited (Backward Citations)
US1988529A
Cited
US2467234A
Cited
US2409996A
Cited
US2462678A
Cited
US2439528A
Cited
US2479367A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-01-07 | 1955-07-09 | 1956-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-01-07 | 1959-07-09 | 1960-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-01-07 | 1963-07-09 | 1964-01-08 | $7700.00 | Window Closed / Lapsed |