Patent US2658931A successfully refreshed from Google Patents.
US2658931A
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Reforming catalyst and method for preparing the same
Assignee: ExxonMobil Oil Corp
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Filing: 1952-06-12
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Granted: 1953-11-10
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Expires: 1972-06-12
Abstract
No abstract record available.
Inventors
- 👤 Leonard C Drake
- 👤 Robert L Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:54
CPC Classifications
C; C10; C10G; C10G35/00; C10G35/04; C10G35/06; B; B01; B01J; B01J21/00; B01J21/02; B01J23/00; B01J23/16; B01J23/24; B01J23/26; B01J27/00; B01J27/24; C07; C07C; C07C5/00; C07C5/32; C07C5/373; C07C5/393; C07C5/41; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/52; Y10; Y10S; Y10S585/00; Y10S585/8995; Y10S585/906
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
51 words
A REFORMING CATALYST CONSISTING ESSENTIALLY OF A MAJOR PROPORTION OF CHROMIUM AND MINOR PROPORTIONS OF CARBON, NITROGEN AND OXYGEN COMBINED IN THE FORMED WHICH RESULTS UPON THERMAL DECOMPOSITION OF AN ALKALI METAL CHROMICYANIDE IN AN OXYGEN-FREE ATMOSPHERE AND EXTRACTION OF THE PRODUCT OF DECOMPOSITION WITH WATER UNTIL FREE OF SOLUBLE MATTER.
Claim 2
Dependent Claim
28 words
A PROCESS FOR INCREASING THE CONTENT OF AROMATICS IN A HYDROCARBON MIXTURE, SAID PROCESS COMPRISING CONTACTING SAID HYDROCARBON MIXTURE WITH THE CATALYST OF CLAIM 6 UNDER REFORMING CONDITIONS.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-09 | 1957-05-11 | 1957-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-09 | 1961-05-11 | 1961-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-09 | 1965-05-11 | 1965-11-10 | $7700.00 | Window Closed / Lapsed |