Patent US2782243A successfully refreshed from Google Patents.
US2782243A
Expired / Lapsed
US
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Hydrogenation of esters
Assignee: Union Carbide Corp
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Filing: 1954-03-29
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Granted: 1957-02-19
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Expires: 1974-03-29
Abstract
No abstract record available.
Inventors
- 👤 Lawrence G Hess
- 👤 Helmut W Schulz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:27
CPC Classifications
C; C07; C07C; C07C29/00; C07C29/132; C07C29/136; C07C29/147; C07C29/149
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
49 words
A PROCESS FOR THE PRODUCTION OF ALCOHOLS FROM ESTERS WHICH COMPRISES REACTING A LOWER ALIPHATIC ESTER WITH HYDROGEN UNDER HYDROGENATING CONDITIONS IN THE PRESENCE OF A CATALYST CONSISTING OF COPPER OXIDE PROMOTED WITH CHROMIUM OXIDE AND CONTAINING FROM 1 TO 5 PARTS OF CHROMIUM PER 100 PARTS OF COPPER.
Claim 2
Dependent Claim
49 words
A PROCESS FOR THE PRODUCTION OF ALCOHOLS FROM ESTERS WHICH COMPRISES REACTING A LOWER ALIPHATIC ESTER WITH HYDROGEN UNDER HYDROGENATING CONDITIONS IN THE PRESENCE OF A CATALYST CONSISTING OF COPPER OXIDE PROMOTED WITH CHROMIUM OXIDE AND CONTAINING FROM 1 TO 5 PARTS OF CHROMIUM PER 100 PARTS OF COPPER.
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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) | 1960-02-19 | 1960-08-20 | 1961-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-02-19 | 1964-08-20 | 1965-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-02-19 | 1968-08-20 | 1969-02-19 | $7700.00 | Window Closed / Lapsed |