US2653136A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surface active compounds
Assignee: Cities Service Oil Co
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Filing: 1950-06-14
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Granted: 1953-09-22
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Expires: 1970-06-14
Abstract
No abstract record available.
Inventors
- 👤 William B Hughes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 01:14
CPC Classifications
C; C10; C10G; C10G33/00; C10G33/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
58 words
THE PROCESS OF RESOLVING EMULSIONS INCLUDING SUBJECTING A PETROLEUM WATER-IN-OIL EMULSION TO THE ACTION OF A COMPOSITION CONSISTING ESSENTIALLY OF THE REACTION PRODUCT OF ONE MOL OF A CARBONYL SELECTED FROM THE GROUP CONSISTING OF ALDEHYDES AND KETONES AND TWO MOLS OF A POLYETHYLENE AMINE, NEUTRALIZED TO A METHYL ORANGE END POINT WITH A PROPYLATED NAPHTHALENE SULFONIC ACID.
Claim 2
Dependent Claim
58 words
THE PROCESS OF RESOLVING EMULSIONS INCLUDING SUBJECTING A PETROLEUM WATER-IN-OIL EMULSION TO THE ACTION OF A COMPOSITION CONSISTING ESSENTIALLY OF THE REACTION PRODUCT OF ONE MOL OF A CARBONYL SELECTED FROM THE GROUP CONSISTING OF ALDEHYDES AND KETONES AND TWO MOLS OF A POLYETHYLENE AMINE, NEUTRALIZED TO A METHYL ORANGE END POINT WITH A PROPYLATED NAPHTHALENE SULFONIC ACID.
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) | 1956-09-21 | 1957-03-23 | 1957-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-09-21 | 1961-03-23 | 1961-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-09-21 | 1965-03-23 | 1965-09-22 | $7700.00 | Window Closed / Lapsed |