Patent US2847475A successfully refreshed from Google Patents.
US2847475A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Copper-containing catalysts and process of producing aldehydes
Assignee: Shell Development Co
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Filing: 1955-06-06
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Granted: 1958-08-12
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Expires: 1975-06-06
Abstract
No abstract record available.
Inventors
- 👤 Hervey H Voge
- 👤 Leland T Atkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:02
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/70; B01J23/72; C; C07; C07C; C07C45/00; C07C45/27; C07C45/32; C07C45/33; C07C45/34
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
49 words
A CATALYST COMPOSITION CONSISTING ESSENGIALLY OF PARTICLES OF SOLID SUPPORT MATERIAL AND AN ADHERENT PELLICULAR DEPOSIT OF COPPER METAL FORMED UPON SAID PARTICLES BY THE ACTION OF A REDUCING AGENT COMPRISING HYDRAZINE UPON AN AMMONIACAL SOLUTION OF A REDUCIBLE COPPER SALT IN THE PRESENCE OF SAID SOLID SUPPORT MATERIAL.
Claim 2
Dependent Claim
49 words
A CATALYST COMPOSITION CONSISTING ESSENGIALLY OF PARTICLES OF SOLID SUPPORT MATERIAL AND AN ADHERENT PELLICULAR DEPOSIT OF COPPER METAL FORMED UPON SAID PARTICLES BY THE ACTION OF A REDUCING AGENT COMPRISING HYDRAZINE UPON AN AMMONIACAL SOLUTION OF A REDUCIBLE COPPER SALT IN THE PRESENCE OF SAID SOLID SUPPORT MATERIAL.
Claim 3
Dependent Claim
125 words
THE PROCESS FOR CONVERTING OLEFINIC HYDROCARBONS CONTAINING FROM THREE TO FOUR CARBON ATOMS TO THE MOLECULE TO THE CORRESPONDING UNSATURATED CARBONYLIC COMPOUNDS COMPRISING ALPHA,BETA-ACROLEIN AND METHACROLEIN, RESPECTIVELY, WHICH COMPRISES CONTACTING SAID OLEFINIC HYDROCARBONS UNDER CONDITIONS OF CONTROLLED INCOMPLETE HYDROCARBON OXIDATION IN THE TEMPERATURE RANGE OF FROM ABOUT 150 TO ABOUT 600*C. WITH A COPPER-CONTAINING CATALYST COMPOSITION CONSISTING ESSENTIALLY OF A SOLID SUPPORT AND AN ADHERENT UNIFORMLY DISTRIBUTED DEPOSIT OF OXIDIZED PELLICULAR COPPER OBTAINED BY HEATING IN AN OXYGEN-CONTAINING ATMOSPHERE PARTICLES OF SOLID SUPPORT MATERIAL COMPRISING AN ADHERENT PELLICULAR DEPOSIT OF COPPER METAL FORMED ON THE SURFACE OF SAID PARTICLES BY THE ACTION OF A REDUCING AGENT COMPRISING HYDRAZINE UPON AN AMMONIACAL SOLUTION OF A REDUCIBLE COPPER COMPOUND IN THE PRESENCE OF SAID SOLID SUPPORT MATERIAL.
Claim 4
Dependent Claim
125 words
THE PROCESS FOR CONVERTING OLEFINIC HYDROCARBONS CONTAINING FROM THREE TO FOUR CARBON ATOMS TO THE MOLECULE TO THE CORRESPONDING UNSATURATED CARBONYLIC COMPOUNDS COMPRISING ALPHA,BETA-ACROLEIN AND METHACROLEIN, RESPECTIVELY, WHICH COMPRISES CONTACTING SAID OLEFINIC HYDROCARBONS UNDER CONDITIONS OF CONTROLLED INCOMPLETE HYDROCARBON OXIDATION IN THE TEMPERATURE RANGE OF FROM ABOUT 150 TO ABOUT 600*C. WITH A COPPER-CONTAINING CATALYST COMPOSITION CONSISTING ESSENTIALLY OF A SOLID SUPPORT AND AN ADHERENT UNIFORMLY DISTRIBUTED DEPOSIT OF OXIDIZED PELLICULAR COPPER OBTAINED BY HEATING IN AN OXYGEN-CONTAINING ATMOSPHERE PARTICLES OF SOLID SUPPORT MATERIAL COMPRISING AN ADHERENT PELLICULAR DEPOSIT OF COPPER METAL FORMED ON THE SURFACE OF SAID PARTICLES BY THE ACTION OF A REDUCING AGENT COMPRISING HYDRAZINE UPON AN AMMONIACAL SOLUTION OF A REDUCIBLE COPPER COMPOUND IN THE PRESENCE OF SAID SOLID SUPPORT MATERIAL.
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) | 1961-08-11 | 1962-02-10 | 1962-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-11 | 1966-02-10 | 1966-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-11 | 1970-02-10 | 1970-08-12 | $7700.00 | Window Closed / Lapsed |