US3577374A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coating compositions comprising polyvinyl acetal
Assignee: Monsanto Co
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Filing: 1968-12-26
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Granted: 1971-05-04
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Expires: 1988-12-26
Abstract
Abstract DISCLOSED HEREIN IS A COATING COMPOSITION FOR APPLICATION TO VARIOUS SURFACES PARTICULARLY WOOD OR METAL. WHEN APPLIED TO METAL, IT IS NOT NECESSARY THAT THE METAL BE PREVIOUSLY CLEANED OF OXIDATION PRODUCTS AND/OR GREASY, OILY CONTAMINATS. THE COATING IS BASED UPON A BLEND OF POLYVINYL ACETAL AND A STYRENE-ALCOHOL INTERPOLYMER, SUCH AS STYRENE-ALLYL ALCOHOL INTERPOLYMER, AND/OR ESTERS AND/ OR ESTER ADDUCTS THEREOF. OPTIONALLY, THE COATING MAY ALSO CONTAIN CHROMIUM TROXIDE AND/OR ALUMINUM POWDER.
Inventors
- 👤 Robert A Isaksen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 17:41
CPC Classifications
C; C09; C09D; C09D129/00; C09D129/14; C08; C08F; C08F8/00; C08F8/14; C09D129/02; C09D129/06; C09D129/08; C09D5/00; C09D5/08; C09D5/10; C09D5/103; C08F2810/00; C08F2810/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-05-03 | 1974-11-02 | 1975-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-03 | 1978-11-02 | 1979-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-03 | 1982-11-02 | 1983-05-04 | $7700.00 | Window Closed / Lapsed |