Patent US2586535A successfully refreshed from Google Patents.
US2586535A
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Catalytic hydrogenation of aromatic hydrocarbons in a stainless steel reactor
Assignee: Universal Oil Products Co
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Filing: 1948-12-29
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Granted: 1952-02-19
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Expires: 1968-12-29
Abstract
No abstract record available.
Inventors
- 👤 Vladimir N Ipatieff
- 👤 Pines Herman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:06
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/02; C07C5/10; C07C2521/00; C07C2521/02; C07C2521/04; C07C2523/00; C07C2523/70; C07C2523/72; C07C2523/74; C07C2523/755; Y; Y10; Y10S; Y10S585/00; Y10S585/919; Y10S585/92
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
50 words
A PROCESS WHICH COMPRISES HYDROENATING A BENZENE HYDROCARBON AT A TEMPERATURE OF FROM ABOUT 200* TO ABOUT 400* C. AT A PRESSURE OF FROM ABOUT 50 TO ABOUT 200 ATMOSPHERES AND IN THE PRSENCE OF STAINLESS STEEL CONTAINING NICKEL AND CHROMIUM AND OF A CATALYST COMPOSITE COMPRISING COPPER AND ALUMINA.
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) | 1955-02-18 | 1955-08-20 | 1956-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-18 | 1959-08-20 | 1960-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-18 | 1963-08-20 | 1964-02-19 | $7700.00 | Window Closed / Lapsed |