US2746947A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymerization of vinyl acetate with peroxide, amine, sulfinic acid catalyst system
Assignee: Omni Products Corp
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Filing: 1953-02-19
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Granted: 1956-05-22
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Expires: 1973-02-19
Abstract
No abstract record available.
Inventors
- 👤 Kominami Tsuguo
- 👤 Ukita Junji
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:45
CPC Classifications
C; C08; C08F; C08F18/00; C08F18/02; C08F18/04; C08F18/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
28 words
THE PROCESS WHICH COMPRISES POLYMERIZING VINYL ACETATE IN HOMOGENEOUS LIQUID PHASE IN THE PRESENCE OF A CATALYST MIXTURE CONTAINING A PEROXIDE, AN AMINE, AND AN AROMATIC SULFINIC ACID.
Claim 2
Dependent Claim
28 words
THE PROCESS WHICH COMPRISES POLYMERIZING VINYL ACETATE IN HOMOGENEOUS LIQUID PHASE IN THE PRESENCE OF A CATALYST MIXTURE CONTAINING A PEROXIDE, AN AMINE, AND AN AROMATIC SULFINIC ACID.
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) | 1959-05-22 | 1959-11-21 | 1960-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-22 | 1963-11-21 | 1964-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-22 | 1967-11-21 | 1968-05-22 | $7700.00 | Window Closed / Lapsed |