Patent US2884460A successfully refreshed from Google Patents.
US2884460A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dehydrogenation of alcohols
Assignee: Heavy Minerals Co
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Filing: 1955-10-19
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Granted: 1959-04-28
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Expires: 1975-10-19
Abstract
No abstract record available.
Inventors
- 👤 Vasili I Komarewsky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:20
CPC Classifications
C; C07; C07C; C07C45/00; C07C45/002; B; B01; B01J; B01J23/00; B01J23/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
48 words
A PROCESS FOR DEHYDROGENATION WHICH COMPRISES SUBJECTING AN ACYCLIC PRIMARY ALCOHOL TO THE ACTION OF A CATALYST SELECTED FROM THE CLASS CONSISTING OF NEODYMIUM OXIDE AND SAMARIUM OXIDE, AT A TEMPERATURE WITHIN THE RANGE FROM 400*C. TO 600*C., AND AT A SPACE VELOCITY OF NO MORE THAN 2.
Claim 2
Dependent Claim
48 words
A PROCESS FOR DEHYDROGENATION WHICH COMPRISES SUBJECTING AN ACYCLIC PRIMARY ALCOHOL TO THE ACTION OF A CATALYST SELECTED FROM THE CLASS CONSISTING OF NEODYMIUM OXIDE AND SAMARIUM OXIDE, AT A TEMPERATURE WITHIN THE RANGE FROM 400*C. TO 600*C., AND AT A SPACE VELOCITY OF NO MORE THAN 2.
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) | 1962-04-27 | 1962-10-27 | 1963-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-27 | 1966-10-27 | 1967-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-27 | 1970-10-27 | 1971-04-28 | $7700.00 | Window Closed / Lapsed |