US2543489A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for breaking petroleum emulsions
Assignee: Baker Petrolite LLC
•
Filing: 1948-11-12
•
Granted: 1951-02-27
•
Expires: 1968-11-12
Abstract
No abstract record available.
Inventors
- 👤 Groote Melvin De
- 👤 Keiser Bernhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:37
CPC Classifications
C; C10; C10G; C10G33/00; C10G33/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
27 words
A PROCESS FOR BREAKING PETROLEUM EMULSIONS OF THE WATER-IN-OIL TYPE, CHARACTERIZED BY SUBJECTING THE EMULSION TO THE ACTION OF DEMULSIFIER INCLUDING HYDROPHILE SYNTHETIC PRODUTS OF THE FORMULA:
Claim 2
Dependent Claim
27 words
A PROCESS FOR BREAKING PETROLEUM EMULSIONS OF THE WATER-IN-OIL TYPE, CHARACTERIZED BY SUBJECTING THE EMULSION TO THE ACTION OF DEMULSIFIER INCLUDING HYDROPHILE SYNTHETIC PRODUTS OF THE FORMULA:
References Cited (Backward Citations)
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Cited
US2307058A
Cited
US2317726A
Cited
US2243330A
Cited
US2454541A
Cited
US2430003A
Cited
US2430002A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-02-26 | 1954-08-28 | 1955-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-02-26 | 1958-08-28 | 1959-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-02-26 | 1962-08-28 | 1963-02-27 | $7700.00 | Window Closed / Lapsed |