Patent US3057915A successfully refreshed from Google Patents.
US3057915A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for oxidizing olefins to aldehydes, ketones and acids
Assignee: Hoechst AG
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Filing: 1958-09-12
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Granted: 1962-10-09
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Expires: 1978-09-12
Abstract
No abstract record available.
Inventors
- 👤 Riemenschneider Wilhelm
- 👤 Hornig Lothar
- 👤 Weber Erhard
- 👤 Dialer Kurt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:31
CPC Classifications
B; B01; B01J; B01J27/00; B01J27/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
IN THE PROCESS FOR THE CONVERSION OF ETHYLENE INTO A CARBONYL COMPOUND SELECTED FROM THE GROUP CONSISTING OF ACETALDEHYDE AND ACETIC ACID BY CONTACTING ETHYLENE IN A REACTION ZONE IN THE PRESENCE OF WATER VAPOR WITH GASEOUS OXYGEN AT AN ACID-TO-NEUTRAL SOLID CATALYST COMPRISISNG A CARRIER, A SALT OF NOBLE METAL OF GROUP VIII OF THE PERIODIC SYSTEM THE STABLE VALENCE OF WHICH IS AT MOST 4, AND CUPARAIC CHLORIDE, THE IMPROVEMENT OF CONTACTING THE REACTANTS WITH A CATALYST WHICH ADDITIONALLY CONTAINS AN OXIDE OF AT LEAST ONE METAL HAVING AN ATOMIC NUMBER FROM 25 TO 27.
Claim 2
Dependent Claim
97 words
IN THE PROCESS FOR THE CONVERSION OF ETHYLENE INTO A CARBONYL COMPOUND SELECTED FROM THE GROUP CONSISTING OF ACETALDEHYDE AND ACETIC ACID BY CONTACTING ETHYLENE IN A REACTION ZONE IN THE PRESENCE OF WATER VAPOR WITH GASEOUS OXYGEN AT AN ACID-TO-NEUTRAL SOLID CATALYST COMPRISISNG A CARRIER, A SALT OF NOBLE METAL OF GROUP VIII OF THE PERIODIC SYSTEM THE STABLE VALENCE OF WHICH IS AT MOST 4, AND CUPARAIC CHLORIDE, THE IMPROVEMENT OF CONTACTING THE REACTANTS WITH A CATALYST WHICH ADDITIONALLY CONTAINS AN OXIDE OF AT LEAST ONE METAL HAVING AN ATOMIC NUMBER FROM 25 TO 27.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-08 | 1966-04-09 | 1966-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-08 | 1970-04-09 | 1970-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-08 | 1974-04-09 | 1974-10-09 | $7700.00 | Window Closed / Lapsed |