US3184405A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Desulfurizing petroleum with alkali and di-alkyl sulfoxide
Assignee: Individual
•
Filing: 1964-03-13
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Granted: 1965-05-18
•
Expires: 1984-03-13
Abstract
No abstract record available.
Inventors
- 👤 Charles O Hoover
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:03
CPC Classifications
C; C10; C10G; C10G19/00; C10G19/02; C10G19/04; C10G21/00; C10G21/06; C10G21/12; C10G21/22; C10G29/00; C10G29/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
36 words
A PROCESS FOR DESULFURIZING A MERCAPTAN-CONTAINING PERTROLEUM OIL STOCK, COMPRISING, SUCCESSIVELY ADMIXING WITH SAID STOCK IN THE LIQUID PHASE IN THE FOLLOWING ORDER (A) A STRONG ALKALI AND (B) A DI-ALKYL SULFOXIDE HAVING THE GENERAL FORMULA
Claim 2
Dependent Claim
36 words
A PROCESS FOR DESULFURIZING A MERCAPTAN-CONTAINING PERTROLEUM OIL STOCK, COMPRISING, SUCCESSIVELY ADMIXING WITH SAID STOCK IN THE LIQUID PHASE IN THE FOLLOWING ORDER (A) A STRONG ALKALI AND (B) A DI-ALKYL SULFOXIDE HAVING THE GENERAL FORMULA
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) | 1968-05-17 | 1968-11-16 | 1969-05-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-17 | 1972-11-16 | 1973-05-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-17 | 1976-11-16 | 1977-05-18 | $7700.00 | Window Closed / Lapsed |