Patent US2451263A successfully refreshed from Google Patents.
US2748103A
Expired / Lapsed
US
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Copolymers of vinyl esters with nu-allyl urethanes and hydrolysis products thereof
Assignee: Eastman Kodak Co
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Filing: 1952-06-10
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Granted: 1956-05-29
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Expires: 1972-06-10
Abstract
No abstract record available.
Inventors
- 👤 William J Priest
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:31
CPC Classifications
C; C08; C08F; C08F8/00; C08F8/12; C08J; C08J5/00; C08J5/18; C08F2800/00; C08F2800/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
23 words
A COPOLYMER OF FROM 95.0 TO 99.9 PERCENT BY WEIGHT OF VINYL ALCOHOL AND FROM 5.0 TO 0.1 PERCENT BY WEIGHT OF ALLYLAMINE.
Claim 2
Dependent Claim
23 words
A COPOLYMER OF FROM 95.0 TO 99.9 PERCENT BY WEIGHT OF VINYL ALCOHOL AND FROM 5.0 TO 0.1 PERCENT BY WEIGHT OF ALLYLAMINE.
References Cited (Backward Citations)
US2388851A
Cited
US2466404A
Cited
US2456428A
Cited
US2606892A
Cited
US2592254A
Cited
US2598664A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-29 | 1959-11-28 | 1960-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-29 | 1963-11-28 | 1964-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-29 | 1967-11-28 | 1968-05-29 | $7700.00 | Window Closed / Lapsed |