Patent US2628948A successfully refreshed from Google Patents.
US2628948A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyvinyl acetate emulsion containing an acetic acid ester of glycerol
Assignee: EIDP Inc
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Filing: 1950-04-06
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Granted: 1953-02-17
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Expires: 1970-04-06
Abstract
No abstract record available.
Inventors
- 👤 Walter G Kunze
- 👤 Evans Raymond Bertram
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:37
CPC Classifications
C; C09; C09D; C09D131/00; C09D131/02; C09D131/04; C09J; C09J131/00; C09J131/02; C09J131/04; C08; C08L; C08L2666/00; C08L2666/28; C08L2666/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
33 words
A COMPOSITION CONSISTING OF A TACKY AQUEOUS EMULSIONI OF POLYVINYL ACETATE, A PLASTICIZER FOR SAID ACETATE AND FROM 4 TO 50% BY WEIGHT OF SAID ACETATE OF AN ACETIC ACID ESTER OF GLYCEROL.
Claim 2
Dependent Claim
33 words
A COMPOSITION CONSISTING OF A TACKY AQUEOUS EMULSIONI OF POLYVINYL ACETATE, A PLASTICIZER FOR SAID ACETATE AND FROM 4 TO 50% BY WEIGHT OF SAID ACETATE OF AN ACETIC ACID ESTER OF GLYCEROL.
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) | 1956-02-17 | 1956-08-18 | 1957-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-02-17 | 1960-08-18 | 1961-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-02-17 | 1964-08-18 | 1965-02-17 | $7700.00 | Window Closed / Lapsed |