US3070640A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of cyclohexane
Assignee: MW Kellogg Co
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Filing: 1958-12-29
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Granted: 1962-12-25
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Expires: 1978-12-29
Abstract
No abstract record available.
Inventors
- 👤 Robert W Pfeiffer
- 👤 James L Patton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:22
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/02; C07C5/10; C07C2521/00; C07C2521/02; C07C2521/04; C07C2523/00; C07C2523/38; C07C2523/40; C07C2523/42; C07C2601/00; C07C2601/12; C07C2601/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
53 words
A PROCESS FOR HYDROGENATING AN AROMATIC HYDROCARBON WHICH COMPRISES PASSING AN AROMATIC HYDROCARBON AND HYDROGEN FIRST IN CONTACT WITH AN ALUMINA CATALYST COMPRISING LESS THAN .06% BY WEIGHT OF A HYDROGENATING METAL COMPONENT AND THEN IN CONTACT WITH AN ALUMINA CATALYST COMPRISING AT LEAST ABOUT 0.1% BY WEIGHT OF A HYDROGENATING METAL COMPONENT.
Claim 2
Dependent Claim
53 words
A PROCESS FOR HYDROGENATING AN AROMATIC HYDROCARBON WHICH COMPRISES PASSING AN AROMATIC HYDROCARBON AND HYDROGEN FIRST IN CONTACT WITH AN ALUMINA CATALYST COMPRISING LESS THAN .06% BY WEIGHT OF A HYDROGENATING METAL COMPONENT AND THEN IN CONTACT WITH AN ALUMINA CATALYST COMPRISING AT LEAST ABOUT 0.1% BY WEIGHT OF A HYDROGENATING METAL COMPONENT.
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) | 1965-12-24 | 1966-06-25 | 1966-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-24 | 1970-06-25 | 1970-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-24 | 1974-06-25 | 1974-12-25 | $7700.00 | Window Closed / Lapsed |