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Patent US2652378A successfully refreshed from Google Patents.
US2652378A
Expired / Lapsed
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Mixtures comprising acrylonitrile polymers and vinyl acetate-fumaric amide interpolymers
Assignee: Eastman Kodak Co
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Filing: 1951-05-03
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Granted: 1953-09-15
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Expires: 1971-05-03
Abstract
No abstract record available.
Inventors
- 👤 John R Caldwell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 06:38
CPC Classifications
C; C08; C08L; C08L33/00; C08L33/18; C08L33/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
A RESINOUS COMPOSITION CONSISTING OF A MIXTURE OF FROM 70 TO 92 PARTS BY WEIGHT OF A POLYMER CONTAINING AT LEAST 70 PER CENT OF ACRYLONITRILE, AND FROM 30 TO 8 PARTS BY WEIGHT OF AN INTERPOLYMER CONSISTING OF FROM 10 TO 85 PER CENT BY WEIGHT OF VINYL ACETATE AND FROM 90 TO 15 PER CENT BY WEIGHT OF A FUMARIC AMIDE HAVING THE GENERATL FORMULA:
Claim 2
Dependent Claim
67 words
A RESINOUS COMPOSITION CONSISTING OF A MIXTURE OF FROM 70 TO 92 PARTS BY WEIGHT OF A POLYMER CONTAINING AT LEAST 70 PER CENT OF ACRYLONITRILE, AND FROM 30 TO 8 PARTS BY WEIGHT OF AN INTERPOLYMER CONSISTING OF FROM 10 TO 85 PER CENT BY WEIGHT OF VINYL ACETATE AND FROM 90 TO 15 PER CENT BY WEIGHT OF A FUMARIC AMIDE HAVING THE GENERATL FORMULA:
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) | 1956-09-14 | 1957-03-16 | 1957-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-09-14 | 1961-03-16 | 1961-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-09-14 | 1965-03-16 | 1965-09-15 | $7700.00 | Window Closed / Lapsed |