Patent US2882224A successfully refreshed from Google Patents.
US2882224A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for sweetening sour hydrocarbon distillates with metal phthalocyanine catalyst in the presence of alkali and air
Assignee: Universal Oil Products Co
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Filing: 1958-02-13
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Granted: 1959-04-14
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Expires: 1978-02-13
Abstract
No abstract record available.
Inventors
- 👤 William K T Gleim
- 👤 Urban Peter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:07
CPC Classifications
C; C10; C10G; C10G27/00; C10G27/04; C10G27/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
42 words
THE PROCESS FOR TREATING A SOUR HYDROCARBON DISTILLATE WHICH COMPRISES REACTING SAID DISTILLATE WITH AN OXIDIZING AGENT IN THE PRESENCE OF AN ALKALINE REAGENT AND A PHTHALOCYANINE CATALYST SELECTED FROM THE GROUP CONSISTING OF METAL PHTHALOCYANINES AND THEIR SULFONATED AND CARBOXYLATED DERIVATIVES.
Claim 2
Dependent Claim
42 words
THE PROCESS FOR TREATING A SOUR HYDROCARBON DISTILLATE WHICH COMPRISES REACTING SAID DISTILLATE WITH AN OXIDIZING AGENT IN THE PRESENCE OF AN ALKALINE REAGENT AND A PHTHALOCYANINE CATALYST SELECTED FROM THE GROUP CONSISTING OF METAL PHTHALOCYANINES AND THEIR SULFONATED AND CARBOXYLATED DERIVATIVES.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-13 | 1962-10-13 | 1963-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-13 | 1966-10-13 | 1967-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-13 | 1970-10-13 | 1971-04-14 | $7700.00 | Window Closed / Lapsed |