Patent US2616834A successfully refreshed from Google Patents.
US2616834A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Removal of objectionable sulfur compounds from mineral oil distillates
Assignee: Sunoco Inc
•
Filing: 1949-12-07
•
Granted: 1952-11-04
•
Expires: 1969-12-07
Abstract
No abstract record available.
Inventors
- 👤 Koerner E Leutz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 19:17
CPC Classifications
C; C10; C10G; C10G19/00; C10G19/02; C10G19/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
THE METHOD OF REMOVING HYDROGEN SULFIDE FORM A LIGHT MINERAL OIL DISTILLATE CONTAINING THE SAME WHICH COMPRISES: CONTACTING SAID DISTILALTE IN LIQUID PHASE WITH AN AQUEOUS TREATING AGENT COMPRISING IRON HYDROXIDE IN SUSPENSION, SAID TREATING AGENT HAVING BEEN PREPARED BY PRECIPITATING IRON HYDROXIDE FROM AN AQUEOUS SOLUTION CONTAINING IRON IONS BY ADDITION OF A BASIC COMPOUND TO SAID SOLUTION AND ACIDIFYING THE RESULTING SUSPENSION UNTIL ITS PH IS BELOW 7 AND AT LEAST 4; AND MAINTAINING SAID DISTILLATE SUBSTANTIALLY ENTIRELY IN LIQUID PHASE DURING SAID CONTACTING.
Claim 2
Independent Claim
86 words
THE METHOD OF REMOVING HYDROGEN SULFIDE FORM A LIGHT MINERAL OIL DISTILLATE CONTAINING THE SAME WHICH COMPRISES: CONTACTING SAID DISTILALTE IN LIQUID PHASE WITH AN AQUEOUS TREATING AGENT COMPRISING IRON HYDROXIDE IN SUSPENSION, SAID TREATING AGENT HAVING BEEN PREPARED BY PRECIPITATING IRON HYDROXIDE FROM AN AQUEOUS SOLUTION CONTAINING IRON IONS BY ADDITION OF A BASIC COMPOUND TO SAID SOLUTION AND ACIDIFYING THE RESULTING SUSPENSION UNTIL ITS PH IS BELOW 7 AND AT LEAST 4; AND MAINTAINING SAID DISTILLATE SUBSTANTIALLY ENTIRELY IN LIQUID PHASE DURING SAID CONTACTING.
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) | 1955-11-04 | 1956-05-05 | 1956-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-04 | 1960-05-05 | 1960-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-04 | 1964-05-05 | 1964-11-04 | $7700.00 | Window Closed / Lapsed |