Patent US2196290A successfully refreshed from Google Patents.
Patent US2499367A successfully refreshed from Google Patents.
US2499367A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chemical manufacture
Assignee: Baker Petrolite LLC
•
Filing: 1948-02-16
•
Granted: 1950-03-07
•
Expires: 1968-02-16
Abstract
No abstract record available.
Inventors
- 👤 Groote Melvin De
- 👤 Keiser Bernhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:08
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/18; C10L1/192; C10L1/198; C10L1/1981; C10G; C10G33/00; C10G33/04; C10L1/1985
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
A PROCESS FOR BREAKING PETROLEUM EMULSIONS OF THE WATER-IN-OIL TYPE CHARACTERIZED BY SUBJECTING THE EMULSION TO THE ACTION OF A DEMULSIFIER INCLUDING A HYDROPHILE OXYALKYLATED 2,4,6 SUBSTITUTED MONOCYCLIC PHENOL C1- TO C8- ALDEHYDE RESIN IN WHICH THE RATIO OF OXYALKYLENE GROUPS TO PHENOLIC NUCLEI IS AT LEAST 2:1 AND THE ALKYLENE RADICALS OF THE OXYALKYLENE GROUPS ARE SELECTED FROM THE GROUP CONSISTING OF ETHYLENE, PROPYLENE, BUTYLENE, HYDROXY PROPYLENE AND HYDROXY BUTYLENE RADICALS.
Claim 2
Dependent Claim
72 words
A PROCESS FOR BREAKING PETROLEUM EMULSIONS OF THE WATER-IN-OIL TYPE CHARACTERIZED BY SUBJECTING THE EMULSION TO THE ACTION OF A DEMULSIFIER INCLUDING A HYDROPHILE OXYALKYLATED 2,4,6 SUBSTITUTED MONOCYCLIC PHENOL C1- TO C8- ALDEHYDE RESIN IN WHICH THE RATIO OF OXYALKYLENE GROUPS TO PHENOLIC NUCLEI IS AT LEAST 2:1 AND THE ALKYLENE RADICALS OF THE OXYALKYLENE GROUPS ARE SELECTED FROM THE GROUP CONSISTING OF ETHYLENE, PROPYLENE, BUTYLENE, HYDROXY PROPYLENE AND HYDROXY BUTYLENE RADICALS.
References Cited (Backward Citations)
US2060410A
Cited
US2076624A
Cited
US2307058A
Cited
US2317726A
Cited
US2278838A
Cited
US2243330A
Cited
US2330474A
Cited
US2385970A
Cited
US2454541A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-03-06 | 1953-09-05 | 1954-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-03-06 | 1957-09-05 | 1958-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-03-06 | 1961-09-05 | 1962-03-07 | $7700.00 | Window Closed / Lapsed |