US3254134A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plural stage hydrogenation of aromatics
Assignee: Texaco Inc
•
Filing: 1965-04-05
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Granted: 1966-05-31
•
Expires: 1985-04-05
Abstract
No abstract record available.
Inventors
- 👤 Smith Randlow
- 👤 Edward F Janes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:06
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/02; C07C5/10; C10; C10G; C10G65/00; C10G65/02; C10G65/04; C10G65/08; C07C2521/00; C07C2521/02; C07C2521/04; C07C2523/00; C07C2523/70; C07C2523/74; C07C2523/755
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
A PROCESS FOR THE PRODUCTION OF SATURATED CYCLIC HYDROCARBONS BY CATALYTIC HYDROGENATION OF THE CORRESPONDING UNSATURATED CYCLIC HYDROCARBON WHICH COMPRISES PASSING A STREAM OF HYDROGEN SERIALLY THROUGH A PLURALITY OF CATALYTIC REACTION ZONES MAINTAINED AT HYDROGENATION CONDITION OF TEMPERATURE AND PRESSURE, THE EFFLUENT FROM EACH REACTION ZONE BEING INTRODUCED INTO THE NEXT SUCCEDING REACTION ZONE, INTRODUCING UNSATURATED CYCLIC HYDROCARBON CHARGE AND SATURATED HYDROCARBON DILUENT TO EACH REACTION ZONE PRECEDING THE FINAL REACTION ZONE AND OF THE HYDROCARBON MATERIALS MENTIONED ADDING ONLY UNSATURATED CHARGE TO THE FEED TO THE FINIAL REACTION ZONE.
Claim 2
Dependent Claim
91 words
A PROCESS FOR THE PRODUCTION OF SATURATED CYCLIC HYDROCARBONS BY CATALYTIC HYDROGENATION OF THE CORRESPONDING UNSATURATED CYCLIC HYDROCARBON WHICH COMPRISES PASSING A STREAM OF HYDROGEN SERIALLY THROUGH A PLURALITY OF CATALYTIC REACTION ZONES MAINTAINED AT HYDROGENATION CONDITION OF TEMPERATURE AND PRESSURE, THE EFFLUENT FROM EACH REACTION ZONE BEING INTRODUCED INTO THE NEXT SUCCEDING REACTION ZONE, INTRODUCING UNSATURATED CYCLIC HYDROCARBON CHARGE AND SATURATED HYDROCARBON DILUENT TO EACH REACTION ZONE PRECEDING THE FINAL REACTION ZONE AND OF THE HYDROCARBON MATERIALS MENTIONED ADDING ONLY UNSATURATED CHARGE TO THE FEED TO THE FINIAL REACTION ZONE.
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) | 1969-05-30 | 1969-11-29 | 1970-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-30 | 1973-11-29 | 1974-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-30 | 1977-11-29 | 1978-05-31 | $7700.00 | Window Closed / Lapsed |