US2683683A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Purification of oils
Assignee: Houdry Process Corp
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Filing: 1951-04-06
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Granted: 1954-07-13
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Expires: 1971-04-06
Abstract
No abstract record available.
Inventors
- 👤 Mills George Alexander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 04:11
CPC Classifications
C; C10; C10G; C10G29/00; C10G29/06; C10G29/10; C10G55/00; C10G55/02; C10G55/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
IN THE PROCESS OF CATALYTICALLY CRACKING PETROLEUM FRACTIONS DERIVED FROM CRUDE OILS CONTAINING HEAVY METAL COMPONENTS DELETERIOUS IN THE CATALYTIC CRACKING OF SUCH OILS, THE IMPROVEMENT WHICH COMPRISES SUBJECTING AN OIL CONTAINING SUCH HEAVY METAL COMPONENTS TO CONTACT WITH A SULFIDING AGENT SELECTED FROM THE GROUP CONSISTING OF HYDROGEN SULFIDE AND AMMONIACAL HYDROGEN SULFIDE, REACTING SAID AGENT WITH SAID COMPONENTS AND FORMING INSOLUBLE HEAVY METAL SULFIDES, AND REMOVING SAID HEAVY METAL SULFIDES AND EXCESS SULFIDING AGENT FROM THE OIL PRIOR TO CONTACT OF THE OIL WITH THE CRACKING CATALYST.
Claim 2
Dependent Claim
89 words
IN THE PROCESS OF CATALYTICALLY CRACKING PETROLEUM FRACTIONS DERIVED FROM CRUDE OILS CONTAINING HEAVY METAL COMPONENTS DELETERIOUS IN THE CATALYTIC CRACKING OF SUCH OILS, THE IMPROVEMENT WHICH COMPRISES SUBJECTING AN OIL CONTAINING SUCH HEAVY METAL COMPONENTS TO CONTACT WITH A SULFIDING AGENT SELECTED FROM THE GROUP CONSISTING OF HYDROGEN SULFIDE AND AMMONIACAL HYDROGEN SULFIDE, REACTING SAID AGENT WITH SAID COMPONENTS AND FORMING INSOLUBLE HEAVY METAL SULFIDES, AND REMOVING SAID HEAVY METAL SULFIDES AND EXCESS SULFIDING AGENT FROM THE OIL PRIOR TO CONTACT OF THE OIL WITH THE CRACKING CATALYST.
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) | 1957-07-12 | 1958-01-11 | 1958-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-07-12 | 1962-01-11 | 1962-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-07-12 | 1966-01-11 | 1966-07-13 | $7700.00 | Window Closed / Lapsed |