Patent US2593446A successfully refreshed from Google Patents.
US2593446A
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Production of cyclic monoolefins
Assignee: Houdry Process Corp
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Filing: 1949-09-03
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Granted: 1952-04-22
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Expires: 1969-09-03
Abstract
No abstract record available.
Inventors
- 👤 Heinemann Heinz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:22
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/32; C07C5/327; C07C5/333; C07C5/3332; C07C5/321; C07C5/373; Y; Y10; Y10S; Y10S585/00; Y10S585/8995; Y10S585/906; Y10S585/949; Y10S585/95
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
66 words
IN THE DEHYDROGENATION OF METHYLCYCLOPENTANE IN CONTACT WITH DEHYDROGENATION CATALYST FOR PRODUCTION OF HIGH YIELDS OF MONOOLEFINES, THE IMPROVEMENT WHICH COMPRISES REDUCING COKE FORMATION DURING THE PROCESS BY EFFECTNG THE DEHYDROGENATION IN THE PRESENCE OF ABOUT 0.5 TO 4% OF AN ADDED AROMATIC HYDROCARBON BY WEIGHT OF SAID METHYLCYCLOPENTANE, SAID ADDED AMOUNT OF AROMATIC HYDROCARBONS BEING PRESENT EXCLUSIVE OF ANY AROMATIC HYDROCARBONS FORMED IN THE PROCESS.
Claim 2
Dependent Claim
66 words
IN THE DEHYDROGENATION OF METHYLCYCLOPENTANE IN CONTACT WITH DEHYDROGENATION CATALYST FOR PRODUCTION OF HIGH YIELDS OF MONOOLEFINES, THE IMPROVEMENT WHICH COMPRISES REDUCING COKE FORMATION DURING THE PROCESS BY EFFECTNG THE DEHYDROGENATION IN THE PRESENCE OF ABOUT 0.5 TO 4% OF AN ADDED AROMATIC HYDROCARBON BY WEIGHT OF SAID METHYLCYCLOPENTANE, SAID ADDED AMOUNT OF AROMATIC HYDROCARBONS BEING PRESENT EXCLUSIVE OF ANY AROMATIC HYDROCARBONS FORMED IN THE PROCESS.
References Cited (Backward Citations)
US2385555A
Cited
US2412936A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-04-22 | 1955-10-22 | 1956-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-22 | 1959-10-22 | 1960-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-22 | 1963-10-22 | 1964-04-22 | $7700.00 | Window Closed / Lapsed |