US2778740A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Emulsion paint
Assignee: Sherwin Williams Co
•
Filing: 1953-12-14
•
Granted: 1957-01-22
•
Expires: 1973-12-14
Abstract
No abstract record available.
Inventors
- 👤 Armstrong Ralph Sterling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 03:21
CPC Classifications
C; C09; C09D; C09D5/00; C09D5/02; C09D5/022
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
122 words
AN EMULSION COATING COMPOSITION CHARACTERIZED BY ITS CAPACITY TO TOLERATE CALCIUM SULFATE IONS WITHOUT EMULSION BREAK-DOWN UPON APPLICATION CONSISTING OF A CONTINUOUS AQUEOUS PHASE, A DISCONTINUOUS OIL PHASE AND A PIMENTARY SOLID PHASE; SAID AQUEOUS PHASE CONSISTING ESSENTIALLY OF A FLUID COLOIDAL SOLUTION OF WATER SOLUBLE CELLULOSE DERIVATIVES CHARACTERIZED BY THEIR AQUEOUS GEL FORMING QUALITY AT LOW SOLIDS CONCENTRATIONS AN AT LEAST ONE SALT-FREE ORGANIC NONIONIC DETERGENT OF MOLECULAR WEIGHT ABOVE 550 CONTAINING A PLURALITY OF OXYALKYLENE UNITS OF NOT MORE THAN 3 CARBON ATOMS ECH AND A HYDROPHOBOC ORGANIC GROUP CONTAINING AT LEAST 8 CARBON ATOMS WHEREIN SAID OIL PHASE CONSISTS ESSENTIALLY OF A NON-VOLATILE OLEORESINOUS VARNISH VEHICLE OF LOW ACID VALUE AND SAID PIGMENTARY PHASE COMPRISES CALCIUM SULFATE CONTAINING PIGMENT.
Claim 2
Dependent Claim
122 words
AN EMULSION COATING COMPOSITION CHARACTERIZED BY ITS CAPACITY TO TOLERATE CALCIUM SULFATE IONS WITHOUT EMULSION BREAK-DOWN UPON APPLICATION CONSISTING OF A CONTINUOUS AQUEOUS PHASE, A DISCONTINUOUS OIL PHASE AND A PIMENTARY SOLID PHASE; SAID AQUEOUS PHASE CONSISTING ESSENTIALLY OF A FLUID COLOIDAL SOLUTION OF WATER SOLUBLE CELLULOSE DERIVATIVES CHARACTERIZED BY THEIR AQUEOUS GEL FORMING QUALITY AT LOW SOLIDS CONCENTRATIONS AN AT LEAST ONE SALT-FREE ORGANIC NONIONIC DETERGENT OF MOLECULAR WEIGHT ABOVE 550 CONTAINING A PLURALITY OF OXYALKYLENE UNITS OF NOT MORE THAN 3 CARBON ATOMS ECH AND A HYDROPHOBOC ORGANIC GROUP CONTAINING AT LEAST 8 CARBON ATOMS WHEREIN SAID OIL PHASE CONSISTS ESSENTIALLY OF A NON-VOLATILE OLEORESINOUS VARNISH VEHICLE OF LOW ACID VALUE AND SAID PIGMENTARY PHASE COMPRISES CALCIUM SULFATE CONTAINING PIGMENT.
References Cited (Backward Citations)
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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) | 1960-01-22 | 1960-07-23 | 1961-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-22 | 1964-07-23 | 1965-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-22 | 1968-07-23 | 1969-01-22 | $7700.00 | Window Closed / Lapsed |