US2879306A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of diols by hydrogenation of polymeric peroxides of diolefins
Assignee: Phillips Petroleum Co
•
Filing: 1952-03-25
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Granted: 1959-03-24
•
Expires: 1972-03-25
Abstract
No abstract record available.
Inventors
- 👤 William M Hutchinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:01
CPC Classifications
C; C08; C08F; C08F36/00; C08F36/02; C08F36/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
55 words
A PROCESS FOR THE PREPARATION OF BUTANEDIOLS, WHICH COMPRISES HYDROGENATION IN THE PRESENCE OF A NON-ACIDIC HYDROGENATION CATALYST SELECTED FROM THE GROUP CONSISTING OF PALLADIUM, NICKEL, RHODIUM, COBALT, AND PLATINUM, AN OXIDATION PRODUCT OF BUTADIENE COMPRISING POLYMERIC PEROXIDIC MATERIALS CONTAINING REPEATING UNITS OF THE TYPE $R''-O-O$ WHEREIN R'' IS SELECTED FROM THE GROUP CONSISTING OF
Claim 2
Dependent Claim
55 words
A PROCESS FOR THE PREPARATION OF BUTANEDIOLS, WHICH COMPRISES HYDROGENATION IN THE PRESENCE OF A NON-ACIDIC HYDROGENATION CATALYST SELECTED FROM THE GROUP CONSISTING OF PALLADIUM, NICKEL, RHODIUM, COBALT, AND PLATINUM, AN OXIDATION PRODUCT OF BUTADIENE COMPRISING POLYMERIC PEROXIDIC MATERIALS CONTAINING REPEATING UNITS OF THE TYPE $R''-O-O$ WHEREIN R'' IS SELECTED FROM THE GROUP CONSISTING OF
References Cited (Backward Citations)
US2484841A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-23 | 1962-09-22 | 1963-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-23 | 1966-09-22 | 1967-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-23 | 1970-09-22 | 1971-03-24 | $7700.00 | Window Closed / Lapsed |