US2797167A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrophobic blends comprising fortified rosin and wax
Assignee: Wyeth Holdings LLC
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Filing: 1955-02-17
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Granted: 1957-06-25
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Expires: 1975-02-17
Abstract
No abstract record available.
Inventors
- 👤 Edwin R Kolodny
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:23
CPC Classifications
D; D21; D21H; D21H17/00; D21H17/62; D21H17/60
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
A HOMOGENEOUS BLEND CONSISTING ESSENTIALLY OF FORTIFIED ROSIN AND WAX IN WEIGHT RATIO BETWEEN ABOUT 40:60 AND 40:60 AND A SMALL BUT EFFECTIVE AMOUNT OF A NORMALLY SOLID MONO-HYDRIC FATTY ALCOHOL HAVING A MELTING POINT BELOW 190*F. AS COUPLING AGENTHEREFOR, SAID FORTIFIED ROSIN CORRESPONDING TO THAT FORMED BY REACTING ROSIN WITH FROM ABOUT 1/12 TO 1/4 OF A MOL OF AN ORGANIC COMPOUND OF ACIDIC CHARACTER CONTAINING A -CO-C=CLINKAGE, AND SAID WAX HAVING A MELTING POINT BETWEEN 100* AND 180*F.
Claim 2
Dependent Claim
80 words
A HOMOGENEOUS BLEND CONSISTING ESSENTIALLY OF FORTIFIED ROSIN AND WAX IN WEIGHT RATIO BETWEEN ABOUT 40:60 AND 40:60 AND A SMALL BUT EFFECTIVE AMOUNT OF A NORMALLY SOLID MONO-HYDRIC FATTY ALCOHOL HAVING A MELTING POINT BELOW 190*F. AS COUPLING AGENTHEREFOR, SAID FORTIFIED ROSIN CORRESPONDING TO THAT FORMED BY REACTING ROSIN WITH FROM ABOUT 1/12 TO 1/4 OF A MOL OF AN ORGANIC COMPOUND OF ACIDIC CHARACTER CONTAINING A -CO-C=CLINKAGE, AND SAID WAX HAVING A MELTING POINT BETWEEN 100* AND 180*F.
References Cited (Backward Citations)
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US2198289A
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US2317372A
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US2324671A
Cited
US2383933A
Cited
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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) | 1960-06-24 | 1960-12-24 | 1961-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-06-24 | 1964-12-24 | 1965-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-06-24 | 1968-12-24 | 1969-06-25 | $7700.00 | Window Closed / Lapsed |