US2540438A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Demulsifier composition
Assignee: Aquanox Corp
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Filing: 1948-10-02
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Granted: 1951-02-06
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Expires: 1968-10-02
Abstract
No abstract record available.
Inventors
- 👤 Fritz E Fuchs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:52
CPC Classifications
C; C10; C10G; C10G33/00; C10G33/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
A DEMULSIFIER COMPOSITION FOR THE TREATMENT OF PETROLEUM EMULSIONS, COMPRISING, A MIXTURE OF (A) PETROLEUM SULFONATE SOAP OF THE CLASS CONSISTING OF MAHOGANY AND GREEN ACID SOAPS, (B) A CASTOR OIL MODIFIED ALKYD RESIN, AND (C) A COMPOUND CONSISTING OF A POLYOXYALKYLENE DERIVATIVE OF A HEXANHYDRIC BODY PARTIALLY ESTERIFIED WITH A LONG-CHAIN FATTY ACID, THE WEIGHT PROPORTIONS IN SAID MIXTURE OF A RANGING FROM ABOUT 30 TO 75 PERCENT; OF B FROM ABOUT 15 TO 60 PERCENT; AND OF C FROM ABOUT 5 TO 15 PERCENT.
Claim 2
Dependent Claim
86 words
A DEMULSIFIER COMPOSITION FOR THE TREATMENT OF PETROLEUM EMULSIONS, COMPRISING, A MIXTURE OF (A) PETROLEUM SULFONATE SOAP OF THE CLASS CONSISTING OF MAHOGANY AND GREEN ACID SOAPS, (B) A CASTOR OIL MODIFIED ALKYD RESIN, AND (C) A COMPOUND CONSISTING OF A POLYOXYALKYLENE DERIVATIVE OF A HEXANHYDRIC BODY PARTIALLY ESTERIFIED WITH A LONG-CHAIN FATTY ACID, THE WEIGHT PROPORTIONS IN SAID MIXTURE OF A RANGING FROM ABOUT 30 TO 75 PERCENT; OF B FROM ABOUT 15 TO 60 PERCENT; AND OF C FROM ABOUT 5 TO 15 PERCENT.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-02-05 | 1954-08-07 | 1955-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-02-05 | 1958-08-07 | 1959-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-02-05 | 1962-08-07 | 1963-02-06 | $7700.00 | Window Closed / Lapsed |