Patent US2640038A successfully refreshed from Google Patents.
US2640038A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mar-resistant paint composition
Assignee: SC Johnson and Son Inc
•
Filing: 1950-01-28
•
Granted: 1953-05-26
•
Expires: 1970-01-28
Abstract
No abstract record available.
Inventors
- 👤 Edward A Wilder
- 👤 Francis E Chapman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:45
CPC Classifications
C; C09; C09D; C09D167/00; C09D167/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
122 words
A MAR-RESISTANT PAINT COMPOSITION COMPRISING PIGMENT AND VEHICLE, SAID VEHICLE COMSISTING ESSENTIALLY OF AN ORGANIC SOLVENT, A RESIN AND AN ESTER OF A POLYHYDRIC ALCOHOL SELECTED FROM THE GROUP CONSISTING OF PENTAERYTHRITOL, POLYPENTAERYTHRITOL AND MIXTURES THEREOF, AT LEAST PARTIALLY ESTERIFIED EXCLUSIVELY WITH A MONOCARBOXYLIC SATURATED FATTY ACID HAVING FROM 15 TO 22 CARBON ATOMS, SAID ESTER BEING SOLUBLE IN SAID RESIN AND FORMING A PHYSICAL SOLUTION THEREWITH AND BEING PRESENT IN A QUANTITY WITHIN A RANGE OF FROM AN AMOUNT SUFFICIENT TO INCREASE THE CONTACT ANGLE OF WATER WITH MATERIAL TREATED WITH SAID COMPOSITION 20* OVER THAT TREATED WITH A QUANTITY OF SAID COMPOSITION NOT CONTAINING SAID ESTER, THE UPPER LIMIT OF SAID RANGE BEING 4% BY WEIGHT OF THE TOTAL COMPOSITION.
Claim 2
Dependent Claim
122 words
A MAR-RESISTANT PAINT COMPOSITION COMPRISING PIGMENT AND VEHICLE, SAID VEHICLE COMSISTING ESSENTIALLY OF AN ORGANIC SOLVENT, A RESIN AND AN ESTER OF A POLYHYDRIC ALCOHOL SELECTED FROM THE GROUP CONSISTING OF PENTAERYTHRITOL, POLYPENTAERYTHRITOL AND MIXTURES THEREOF, AT LEAST PARTIALLY ESTERIFIED EXCLUSIVELY WITH A MONOCARBOXYLIC SATURATED FATTY ACID HAVING FROM 15 TO 22 CARBON ATOMS, SAID ESTER BEING SOLUBLE IN SAID RESIN AND FORMING A PHYSICAL SOLUTION THEREWITH AND BEING PRESENT IN A QUANTITY WITHIN A RANGE OF FROM AN AMOUNT SUFFICIENT TO INCREASE THE CONTACT ANGLE OF WATER WITH MATERIAL TREATED WITH SAID COMPOSITION 20* OVER THAT TREATED WITH A QUANTITY OF SAID COMPOSITION NOT CONTAINING SAID ESTER, THE UPPER LIMIT OF SAID RANGE BEING 4% BY WEIGHT OF THE TOTAL COMPOSITION.
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) | 1956-05-25 | 1956-11-24 | 1957-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-05-25 | 1960-11-24 | 1961-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-05-25 | 1964-11-24 | 1965-05-26 | $7700.00 | Window Closed / Lapsed |