Patent US3564503A successfully refreshed from Google Patents.
Patent US2956971A successfully refreshed from Google Patents.
US2956971A
Expired / Lapsed
US
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Defoaming compositions and method and products containing the same
Assignee: Individual
•
Filing: 1958-01-13
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Granted: 1960-10-18
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Expires: 1978-01-13
Abstract
No abstract record available.
Inventors
- 👤 Lam Shek Ying
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:49
CPC Classifications
B; B01; B01D; B01D19/00; B01D19/02; B01D19/04; B01D19/0404; B01D19/0413
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
A NON-AQUEOUS COMPOSITION HAVING DEFOAMING PROPERTIES COMPRISING: FROM 45 TO 95% OF AN OIL HAVING DISPERSED THEREIN 0.5 TO 10% OF A WATER-INSOLUBLE METALLIC SOAP, 0.5 TO 10% OF SECONDARY AMINES HAVING ALKYL, GROUPS DERIVED FROM MIXED FATTY ACIDS SELECTED FROM THE GROUP CONSISTING OF HARD TALLOW, COCONUT AND SOYBEAN FATTY ACIDS, AND 1 TO 10% OF A COMPLETELY ESTERIFIED POLYOXYALKYLENE POLYHYDRIC ALCOHOL FATTY ACID ESTER, THE COMPOSITION BEING CAPABLE OF INDUCING A MARKED, IMMEDIATE AND SUSTAINED DEFOAMING ACTION WHEN ADDED TO WATER EMULSIONS AND LATICES NORMALLY SUSCEPTIBLE TO FOAMING.
Claim 2
Dependent Claim
90 words
A NON-AQUEOUS COMPOSITION HAVING DEFOAMING PROPERTIES COMPRISING: FROM 45 TO 95% OF AN OIL HAVING DISPERSED THEREIN 0.5 TO 10% OF A WATER-INSOLUBLE METALLIC SOAP, 0.5 TO 10% OF SECONDARY AMINES HAVING ALKYL, GROUPS DERIVED FROM MIXED FATTY ACIDS SELECTED FROM THE GROUP CONSISTING OF HARD TALLOW, COCONUT AND SOYBEAN FATTY ACIDS, AND 1 TO 10% OF A COMPLETELY ESTERIFIED POLYOXYALKYLENE POLYHYDRIC ALCOHOL FATTY ACID ESTER, THE COMPOSITION BEING CAPABLE OF INDUCING A MARKED, IMMEDIATE AND SUSTAINED DEFOAMING ACTION WHEN ADDED TO WATER EMULSIONS AND LATICES NORMALLY SUSCEPTIBLE TO FOAMING.
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) | 1963-10-18 | 1964-04-18 | 1964-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-18 | 1968-04-18 | 1968-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-18 | 1972-04-18 | 1972-10-18 | $7700.00 | Window Closed / Lapsed |