US2562878A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Processes for breaking emulsions
Assignee: Baker Petrolite LLC
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Filing: 1949-01-13
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Granted: 1951-08-07
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Expires: 1969-01-13
Abstract
No abstract record available.
Inventors
- 👤 Jr Charles M Blair
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:16
CPC Classifications
C; C10; C10G; C10G33/00; C10G33/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
63 words
A PROCESS FOR BREAKING PETROLEUM EMULSIONS OF THE WATER-IN-OIL TYPE, CHARACTERIZED BY SUBJECTING THE EMULSION TO THE REACTION OF A DEMSULSIFIER INCLUDIG AN AORGNIC POLYESTER OF A DICARBOXYLIC ACID, AND A POLYHYDRIC ALKYLENE ETHER GLYCOL IN WHICH THE ALKYLENE GROUP CONTAINS LESS THAN 6 CARBON ATOMS, AND IN WHICH THE DICARBOXY ACID AND THE POLYHYDRIC ALCOHOL RESIDUES ARE LINKED TOGETHER BY ESTER LINKAGES.
Claim 2
Dependent Claim
63 words
A PROCESS FOR BREAKING PETROLEUM EMULSIONS OF THE WATER-IN-OIL TYPE, CHARACTERIZED BY SUBJECTING THE EMULSION TO THE REACTION OF A DEMSULSIFIER INCLUDIG AN AORGNIC POLYESTER OF A DICARBOXYLIC ACID, AND A POLYHYDRIC ALKYLENE ETHER GLYCOL IN WHICH THE ALKYLENE GROUP CONTAINS LESS THAN 6 CARBON ATOMS, AND IN WHICH THE DICARBOXY ACID AND THE POLYHYDRIC ALCOHOL RESIDUES ARE LINKED TOGETHER BY ESTER LINKAGES.
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) | 1954-08-06 | 1955-02-05 | 1955-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-08-06 | 1959-02-05 | 1959-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-08-06 | 1963-02-05 | 1963-08-07 | $7700.00 | Window Closed / Lapsed |