US2636829A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Protein emulsion coating composition
Assignee: Sherwin Williams Co
•
Filing: 1949-09-27
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Granted: 1953-04-28
•
Expires: 1969-09-27
Abstract
No abstract record available.
Inventors
- 👤 Richard G Smith
- 👤 Carl S Vestling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:53
CPC Classifications
C; C09; C09D; C09D189/00; C09D189/005
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
AN OIL-IN-WATER EMULSION COATING COMPOSITION COMPRISING ESSENTIALLY AN AQUEOUS ALKALINE CONTINUOUS PHASE IN WHICH IS DISSOLVED A PROTEIN SOLUBLE IN AQUEOUS ALKALINE SOLUTIONS BUT INSOLUBLE IN GLYCERINE, SAID PROTEIN COMPRISING CASEIN A DISCONTINUOUS OIL PHASE CAPABLE OF FORMING A SOLID FILM WHEN THE EMULSION IS APPLIED AS A COATING TO A SURFACE AND DRIED AEROBICALLY, AND A QUANTITY OF A QUINONE EFFECTIVE TO INCREASE THE WASH FASTNESS OF THE RESULTING COATING.
Claim 2
Dependent Claim
71 words
AN OIL-IN-WATER EMULSION COATING COMPOSITION COMPRISING ESSENTIALLY AN AQUEOUS ALKALINE CONTINUOUS PHASE IN WHICH IS DISSOLVED A PROTEIN SOLUBLE IN AQUEOUS ALKALINE SOLUTIONS BUT INSOLUBLE IN GLYCERINE, SAID PROTEIN COMPRISING CASEIN A DISCONTINUOUS OIL PHASE CAPABLE OF FORMING A SOLID FILM WHEN THE EMULSION IS APPLIED AS A COATING TO A SURFACE AND DRIED AEROBICALLY, AND A QUANTITY OF A QUINONE EFFECTIVE TO INCREASE THE WASH FASTNESS OF THE RESULTING COATING.
References Cited (Backward Citations)
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US1692389A
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US2262771A
Cited
US2379402A
Cited
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Cited
US2433783A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-04-27 | 1956-10-27 | 1957-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-27 | 1960-10-27 | 1961-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-27 | 1964-10-27 | 1965-04-28 | $7700.00 | Window Closed / Lapsed |