US2964478A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for breaking emulsions of the oil-in-water class
Assignee: Baker Petrolite LLC
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Filing: 1958-01-13
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Granted: 1960-12-13
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Expires: 1978-01-13
Abstract
No abstract record available.
Inventors
- 👤 Louis T Monson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 00:11
CPC Classifications
C; C10; C10G; C10G33/00; C10G33/04; B; B01; B01D; B01D11/00; B01D11/04; B01D11/0492
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
70 words
A PROCESS FOR BREAKING AN EMULSION COMPRISING AN OIL DISPERSED IN A NON-OILY CONTINUOUS PHASE IN WHICH THE DISPERSED PHASE IS NOT GREATER THAN ABOUT 20%, CHARACTERIZED BY SUBJECTING THE EMULSION TO THE ACTION OF A REAGENT COMPRISING AN ULTRA HIGH MOLECULAR WEIGHT LOWER POLYALKYLENE OXIDE SELECTED FROM THE GROUP CONSISTING OF POLYETHYLENE OXIDE, POLYPROPYLENE OXIDE, POLYBUTYLENE OXIDE, AND COPOLYMERS THEREOF HAVING A MOLECULAR WEIGHT OF AT LEAST ABOUT 100,000.
References Cited (Backward Citations)
US2159313A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-13 | 1964-06-13 | 1964-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-13 | 1968-06-13 | 1968-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-13 | 1972-06-13 | 1972-12-13 | $7700.00 | Window Closed / Lapsed |