Patent US2966452A successfully refreshed from Google Patents.
US2966452A
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Sweetening sour hydrocarbon distillate with metal phthalocyanine catalyst in the presence of alkali air and sulfite ions
Assignee: Universal Oil Products Co
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Filing: 1959-02-24
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Granted: 1960-12-27
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Expires: 1979-02-24
Abstract
No abstract record available.
Inventors
- 👤 William K T Gleim
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:27
CPC Classifications
C; C10; C10G; C10G27/00; C10G27/04; C10G27/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
37 words
IN THE REMOVAL OF MERCAPTANS FROM SOUR HYDROCARBON DISTILLATE BY OXIDATION THEREOF IN THE PRESENCE OF A PHTHALOCYANINE CATALYST, THE METHOD OF RETARDING DEACTIVATION OF THE PHTHALOCYANINE CATALYST WHICH COMPRISES ADDING SULFITE IONS TO THE REACTION MIXTURE.
Claim 2
Dependent Claim
37 words
IN THE REMOVAL OF MERCAPTANS FROM SOUR HYDROCARBON DISTILLATE BY OXIDATION THEREOF IN THE PRESENCE OF A PHTHALOCYANINE CATALYST, THE METHOD OF RETARDING DEACTIVATION OF THE PHTHALOCYANINE CATALYST WHICH COMPRISES ADDING SULFITE IONS TO THE REACTION MIXTURE.
References Cited (Backward Citations)
US164694A
Cited
US1540218A
Cited
US1993140A
Cited
US2028998A
Cited
US2174810A
Cited
US2882224A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-27 | 1964-06-27 | 1964-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-27 | 1968-06-27 | 1968-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-27 | 1972-06-27 | 1972-12-27 | $7700.00 | Window Closed / Lapsed |