US2654714A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of breaking petroleum emulsions and compositions therefor
Assignee: Visco Products Co
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Filing: 1950-11-16
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Granted: 1953-10-06
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Expires: 1970-11-16
Abstract
No abstract record available.
Inventors
- 👤 Willard H Kirkpatrick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:39
CPC Classifications
C; C10; C10G; C10G33/00; C10G33/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
A PROCESS OF BREAKING WATER-IN-OIL EMULSIONS WHICH COMPRISES TREATING SUCH EMULSIONS WITH AN INORGANIC ESTER OF AN OXYGEN CONTAINING INORGANIC ACID AND AN ALIPHATIC POLYOXYALKYLENE COMPOUND HAVING A TERMINAL HYDROXY GROUP IN WHICH THE MAJOR PORTION OF THE AVERAGE MOLECULAR WEIGHT IS ATTRIBUTABLE TO OXYALKYLENE GROUPS FROM THE GROUP CONSISTING OF OXYPROPYLENE GROUPS AND MIXED OXYETHYLENE AND OXYPRAPYLENE GROUPS HAVING A WEIGHT RATIO OF OXYETHYLENE TO OXYPROPYLENE NOT EXCEEDING 4:1 AND THE AVERAGE MOLECULAR WEIGHT IS AT LEAST 1000 WHERE THE OXYALKYLENE GROUPS ARE BOTH OXYETHYLENE AND OXYPROPYLENE AND AT LEAST 1200 WHERE THE OXYALKYLENE GROUPS ARE SOLELY OXYPROPYLENE GROUPS.
Claim 2
Dependent Claim
100 words
A PROCESS OF BREAKING WATER-IN-OIL EMULSIONS WHICH COMPRISES TREATING SUCH EMULSIONS WITH AN INORGANIC ESTER OF AN OXYGEN CONTAINING INORGANIC ACID AND AN ALIPHATIC POLYOXYALKYLENE COMPOUND HAVING A TERMINAL HYDROXY GROUP IN WHICH THE MAJOR PORTION OF THE AVERAGE MOLECULAR WEIGHT IS ATTRIBUTABLE TO OXYALKYLENE GROUPS FROM THE GROUP CONSISTING OF OXYPROPYLENE GROUPS AND MIXED OXYETHYLENE AND OXYPRAPYLENE GROUPS HAVING A WEIGHT RATIO OF OXYETHYLENE TO OXYPROPYLENE NOT EXCEEDING 4:1 AND THE AVERAGE MOLECULAR WEIGHT IS AT LEAST 1000 WHERE THE OXYALKYLENE GROUPS ARE BOTH OXYETHYLENE AND OXYPROPYLENE AND AT LEAST 1200 WHERE THE OXYALKYLENE GROUPS ARE SOLELY OXYPROPYLENE GROUPS.
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) | 1956-10-05 | 1957-04-06 | 1957-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-10-05 | 1961-04-06 | 1961-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-10-05 | 1965-04-06 | 1965-10-06 | $7700.00 | Window Closed / Lapsed |