US2582883A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Modified double solvent treatment
Assignee: ExxonMobil Oil Corp
•
Filing: 1947-08-27
•
Granted: 1952-01-15
•
Expires: 1967-08-27
Abstract
No abstract record available.
Inventors
- 👤 Harold C Myers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:56
CPC Classifications
C; C10; C10G; C10G21/00; C10G21/02; C10G21/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
IN THE TREATMENT OF A MIXTURE OF PARAFFINIC AND NON-PARAFFINIC HYDROCARBONS CONTAMINATED WITH ASPHALTIC MATERIALS WHICH COMPRISES CONTACTING A CHARGE STOCK CONTAINING PARAFFINIC HYDROCARBONS, NON-PARAFFINIC HYDROCARBONS AND ASPHALTIC MATERIAL WITH TWO SUBSTANTIALLY MUTUALLY IMMISCIBLE SOLVENTS COMPRISING A SOLVENT FOR PARAFFINIC HYDROCARBONS AND A SOLBENT FOR NONPARAFFINIC HYDROCARBONS AND SEPARATING A RAFFI NATE FRACTION MORE PARAFFINIC THAN SAID CHARGE STOCK FROM AN EXTRACT FRACTION MORE NON-PARAFFINIC THAN SAID CHARGE STOCK, THE IMPROVEMENT WHICH COMPRISES EMPLOYING A SOLVENT FOR NON-PARAFFINIC HYDROCARBONS CONSISTING ESSENTIALLY OF PHENOL AND CRESOLS AND AT LEAST 1.5 WEIGHT PER CENT ADDED WATER AND A SOLVENT FOR PARAFFINIC HYDROCARBONS CONSISTING ESSENTIALLY OF PROPANE AND ABOUT 1 TO ABOUT 20 PER CENT OF AN ORGANIC CARBONATE.
Claim 2
Dependent Claim
116 words
IN THE TREATMENT OF A MIXTURE OF PARAFFINIC AND NON-PARAFFINIC HYDROCARBONS CONTAMINATED WITH ASPHALTIC MATERIALS WHICH COMPRISES CONTACTING A CHARGE STOCK CONTAINING PARAFFINIC HYDROCARBONS, NON-PARAFFINIC HYDROCARBONS AND ASPHALTIC MATERIAL WITH TWO SUBSTANTIALLY MUTUALLY IMMISCIBLE SOLVENTS COMPRISING A SOLVENT FOR PARAFFINIC HYDROCARBONS AND A SOLBENT FOR NONPARAFFINIC HYDROCARBONS AND SEPARATING A RAFFI NATE FRACTION MORE PARAFFINIC THAN SAID CHARGE STOCK FROM AN EXTRACT FRACTION MORE NON-PARAFFINIC THAN SAID CHARGE STOCK, THE IMPROVEMENT WHICH COMPRISES EMPLOYING A SOLVENT FOR NON-PARAFFINIC HYDROCARBONS CONSISTING ESSENTIALLY OF PHENOL AND CRESOLS AND AT LEAST 1.5 WEIGHT PER CENT ADDED WATER AND A SOLVENT FOR PARAFFINIC HYDROCARBONS CONSISTING ESSENTIALLY OF PROPANE AND ABOUT 1 TO ABOUT 20 PER CENT OF AN ORGANIC CARBONATE.
References Cited (Backward Citations)
US1860823A
Cited
US1917910A
Cited
GB413307A
Cited
US2017432A
Cited
US1912349A
Cited
US2139000A
Cited
US2142525A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-01-14 | 1955-07-16 | 1956-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-01-14 | 1959-07-16 | 1960-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-01-14 | 1963-07-16 | 1964-01-15 | $7700.00 | Window Closed / Lapsed |