US2657191A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymerization of acrylonitrile in the presence of preformed interpolymers
Assignee: Eastman Kodak Co
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Filing: 1950-12-01
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Granted: 1953-10-27
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Expires: 1970-12-01
Abstract
No abstract record available.
Inventors
- 👤 Jr Harry W Coover
- 👤 Joseph B Dickey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:01
CPC Classifications
C; C08; C08F; C08F291/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
39 words
A PROCESS FOR PREPARING RESINOUS COMPOSITIONS COMPRISING HEATING IN THE PRESENCE OF A POLYMERIZATION CATALYST A DISPERSION CONTAINING AS THE SOLE POLYMERIZABLE MONOMERS FROM 1 TO 10 PARTS BY WEIGHT OF A MONOETHYLENICALLY UNSATURATED, POLYMERIZABLE, ORGANIC COMPOUND CONTAINING A
Claim 2
Dependent Claim
39 words
A PROCESS FOR PREPARING RESINOUS COMPOSITIONS COMPRISING HEATING IN THE PRESENCE OF A POLYMERIZATION CATALYST A DISPERSION CONTAINING AS THE SOLE POLYMERIZABLE MONOMERS FROM 1 TO 10 PARTS BY WEIGHT OF A MONOETHYLENICALLY UNSATURATED, POLYMERIZABLE, ORGANIC COMPOUND CONTAINING A
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) | 1956-10-26 | 1957-04-27 | 1957-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-10-26 | 1961-04-27 | 1961-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-10-26 | 1965-04-27 | 1965-10-27 | $7700.00 | Window Closed / Lapsed |