US2569932A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cross-linked hydrolyzed interpolymer of vinyl acetate and allylidene diacetate and process
Assignee: EIDP Inc
•
Filing: 1945-11-21
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Granted: 1951-10-02
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Expires: 1965-11-21
Abstract
No abstract record available.
Inventors
- 👤 Izard Emmette Farr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:11
CPC Classifications
C; C08; C08F; C08F8/00; C08F8/28; C08J; C08J5/00; C08J5/18; C08K; C08K3/00; C08L; C08L1/00; C08L31/00; C08L31/02; C08L31/04; C08F2810/00; C08F2810/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
29 words
THE POLYMER OBTAINED BY REACTING ALDEHYDE WITH HYDROXY GROUPS OF A HYDROLYZED INTERPOLYMER OF VINYL ACETATE AND ALLYLIDENE DIACETATE, SAID POLYMER HAVING A MOLECULAR WEIGHT OF AT LEAST 1000.
Claim 2
Dependent Claim
29 words
THE POLYMER OBTAINED BY REACTING ALDEHYDE WITH HYDROXY GROUPS OF A HYDROLYZED INTERPOLYMER OF VINYL ACETATE AND ALLYLIDENE DIACETATE, SAID POLYMER HAVING A MOLECULAR WEIGHT OF AT LEAST 1000.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-10-01 | 1955-04-02 | 1955-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-10-01 | 1959-04-02 | 1959-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-10-01 | 1963-04-02 | 1963-10-02 | $7700.00 | Window Closed / Lapsed |