US3268608A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Selective hydrogenation process
Assignee: Universal Oil Products Co
•
Filing: 1963-12-26
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Granted: 1966-08-23
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Expires: 1983-12-26
Abstract
No abstract record available.
Inventors
- 👤 Rosset Armand J De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:15
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/02; C07C5/03; C07C2521/00; C07C2521/02; C07C2521/04; C07C2521/18; C07C2523/00; C07C2523/38; C07C2523/40; C07C2523/44; C07C2523/70; C07C2523/74; C07C2523/755; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/582
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
A PROCESS FOR THE SELECTIVE HYDROGENATION OF THE ALKENYL GROUP OF AN ALKENYL SUBSTITUTED AROMATIC COMPOUND WHICH COMPRISES TREATING SAID COMPOUND WITH HYDROGEN CONTAINING A SMALL AMOUNT OF HYDROGEN SULFIDE IN THE PRESENCE OF A SULFIDED HYDROGENATION CATALYST AT A TEMPERATURE IN THE RANGE OF FROM ABOUT 100* TO ABOUT 300* C. AND AT A PRESSURE IN THE RANGE OF FROM ABOUT 2 TO ABOUT 100 ATMOSPHERES, AND RECOVERING THE DESIRED PRODUCT.
Claim 2
Dependent Claim
72 words
A PROCESS FOR THE SELECTIVE HYDROGENATION OF THE ALKENYL GROUP OF AN ALKENYL SUBSTITUTED AROMATIC COMPOUND WHICH COMPRISES TREATING SAID COMPOUND WITH HYDROGEN CONTAINING A SMALL AMOUNT OF HYDROGEN SULFIDE IN THE PRESENCE OF A SULFIDED HYDROGENATION CATALYST AT A TEMPERATURE IN THE RANGE OF FROM ABOUT 100* TO ABOUT 300* C. AND AT A PRESSURE IN THE RANGE OF FROM ABOUT 2 TO ABOUT 100 ATMOSPHERES, AND RECOVERING THE DESIRED PRODUCT.
References Cited (Backward Citations)
US2497176A
Cited
US2793238A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-22 | 1970-02-21 | 1970-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-22 | 1974-02-21 | 1974-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-22 | 1978-02-21 | 1978-08-23 | $7700.00 | Window Closed / Lapsed |