US2741650A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Styrene-modified polyvinyl acetate resins
Assignee: Shawinigan Resins Corp
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Filing: 1951-11-08
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Granted: 1956-04-10
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Expires: 1971-11-08
Abstract
No abstract record available.
Inventors
- 👤 Lukman John Charles
- 👤 Wheeler Ora Leon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:43
CPC Classifications
C; C08; C08F; C08F263/00; C08F263/02; C08F263/04
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
51 words
A HEAT REACTION PRODUCT IN THE FORM OF A RESIN EMULSION OF A 50-150 PARTS OF A MIXTURE COMPRISING FROM 60% TO 85% POLYVINYL ACETATE AND FROM 40% TO 15% STYRENE, 100 PARTS OF WATER AND 0.5 TO 6.0 PARTS OF A WATERSOLUBLE HYDROPHILIC COLLOID, REACTED AT TEMPARATURES OVER 80* C.
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-04-10 | 1959-10-10 | 1960-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-10 | 1963-10-10 | 1964-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-10 | 1967-10-10 | 1968-04-10 | $7700.00 | Window Closed / Lapsed |