Patent US3180840A successfully refreshed from Google Patents.
US3180840A
Expired / Lapsed
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Olefin oxidation catalyst and method of preparation thereof
Assignee: Cities Service Research and Development Co
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Filing: 1960-04-06
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Granted: 1965-04-27
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Expires: 1980-04-06
Abstract
No abstract record available.
Inventors
- 👤 Adolph C Shotts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:28
CPC Classifications
C; C07; C07C; C07C45/00; C07C45/27; C07C45/32; C07C45/33; C07C45/34; B; B01; B01J; B01J23/00; B01J23/70; B01J23/72; C07C45/35
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
53 words
A CATALYST FOR OXIDIZING OLEFINS WHICH COMPRISES A COPPER OXIDE COATING CONSISTING OF A MIXTURE OF CUPROUS AND CUPRIC OXIDES ON A SUPPORT COMPRISING A COPPER MASS VARYING IN SIZE FROM 1 TO 10 MILLIMETERS HAVING SMALL PARTICLES OF SILICON CARBIDE FUSED TO ABOUT 50 TO ABOUT 99 PERCENT OF THE SURFACE THEREOF.
Claim 2
Dependent Claim
53 words
A CATALYST FOR OXIDIZING OLEFINS WHICH COMPRISES A COPPER OXIDE COATING CONSISTING OF A MIXTURE OF CUPROUS AND CUPRIC OXIDES ON A SUPPORT COMPRISING A COPPER MASS VARYING IN SIZE FROM 1 TO 10 MILLIMETERS HAVING SMALL PARTICLES OF SILICON CARBIDE FUSED TO ABOUT 50 TO ABOUT 99 PERCENT OF THE SURFACE THEREOF.
Claim 3
Independent Claim
63 words
A METHOD OF PREPARING A CATALYST FOR OXIDATION OF OLEFINS WHICH COMPRISES DROPPING MOLTEN COPPER METAL INTO A VESSEL CONTAINING SMALL PARTICLES OF SILICON CARBIDE WITH AGITATION, DEPOSITING COPPER NITRATE ON THE SILICON CARBIDE-FUSED-TO-COPPER SHOT SUPPORT, OXIDIZING SAID COPPER NITRITE COATING TO COPPER OXIDE IN A STREAM OF OXYGEN CONTAINING GAS AND THEN PARTIALLY REDUCING THE COPPER OXIDE IN A STREAM OF HYDROGEN.
Claim 4
Independent Claim
63 words
A METHOD OF PREPARING A CATALYST FOR OXIDATION OF OLEFINS WHICH COMPRISES DROPPING MOLTEN COPPER METAL INTO A VESSEL CONTAINING SMALL PARTICLES OF SILICON CARBIDE WITH AGITATION, DEPOSITING COPPER NITRATE ON THE SILICON CARBIDE-FUSED-TO-COPPER SHOT SUPPORT, OXIDIZING SAID COPPER NITRITE COATING TO COPPER OXIDE IN A STREAM OF OXYGEN CONTAINING GAS AND THEN PARTIALLY REDUCING THE COPPER OXIDE IN A STREAM OF HYDROGEN.
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) | 1968-04-26 | 1968-10-26 | 1969-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-26 | 1972-10-26 | 1973-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-26 | 1976-10-26 | 1977-04-27 | $7700.00 | Window Closed / Lapsed |