Patent US3128245A successfully refreshed from Google Patents.
US3128245A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treating hydrocarbon distilates
Assignee: Universal Oil Products Co
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Filing: 1961-11-24
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Granted: 1964-04-07
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Expires: 1981-11-24
Abstract
No abstract record available.
Inventors
- 👤 Robert P Zimmerman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 09:39
CPC Classifications
C; C10; C10G; C10G17/00; C10G17/09
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
63 words
A COMBINATION PROCESS FOR TREATING A SOUR HYDROCARBON DISTILLATE TO PRODUCE A DISTILLATE OF REDUCED MERCAPTAN CONTENT AND OF ACCEPTABLE COLOR, WHICH COMPRISES REACTING SAID DISTILLATE WITH AN OXIDIZING AGENT IN THE PRESENCE OF A PHITHALOCYANINE CATALYST, SEPARATING FROM THE CATALYST A SWEETENED DISTILLATE OF DEPRECIATED COLOR, AND THEREAFTER TREATING THE SEPARATED DISTILLATE WITH SUFFICIENT HYDROSULFITE TO IMPROVE THE COLOR OF THE DISTILLATE.
Claim 2
Dependent Claim
63 words
A COMBINATION PROCESS FOR TREATING A SOUR HYDROCARBON DISTILLATE TO PRODUCE A DISTILLATE OF REDUCED MERCAPTAN CONTENT AND OF ACCEPTABLE COLOR, WHICH COMPRISES REACTING SAID DISTILLATE WITH AN OXIDIZING AGENT IN THE PRESENCE OF A PHITHALOCYANINE CATALYST, SEPARATING FROM THE CATALYST A SWEETENED DISTILLATE OF DEPRECIATED COLOR, AND THEREAFTER TREATING THE SEPARATED DISTILLATE WITH SUFFICIENT HYDROSULFITE TO IMPROVE THE COLOR OF THE DISTILLATE.
References Cited (Backward Citations)
US2966452A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-04-07 | 1967-10-07 | 1968-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-07 | 1971-10-07 | 1972-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-07 | 1975-10-07 | 1976-04-07 | $7700.00 | Window Closed / Lapsed |