Patent US2814599A successfully refreshed from Google Patents.
US2814599A
Expired / Lapsed
US
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Group iii metal compound promoted platinum or palladium catalyst
Assignee: MW Kellogg Co
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Filing: 1953-04-17
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Granted: 1957-11-26
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Expires: 1973-04-17
Abstract
No abstract record available.
Inventors
- 👤 Philip A Lefrancois
- 👤 Earl W Riblett
- 👤 William P Burton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:35
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/38; B01J23/54; B01J23/56; B01J23/62; B01J23/60; B01J23/63; Y; Y10; Y10S; Y10S502/00; Y10S502/506; Y10S502/513
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
A CATALYST COMPRISING FROM ABOUT 0.01 TO ABOUT 5% BY WEIGHT OF A CATALYTIC AGENT SELECTED FROM THE GROUP CONSISTING OF PLATINUM AND PALLADIUM IN COMBINATION WITH FROM ABOUT 0.05 TO ABOUT 20% BY WEIGHT, BASED ON THE TOTAL CATALYST, OF A COMPOUND OF A GROUP III METAL HAVING AN ATOMIC NUMBER OF AT LEAST 21 AND NOT MORE THAN 89 SUPPORTED ON AN INORGANIC METAL OXIDE NOT REDUCIBLE AT A TEMPERATURE BELOW ABOUT 1200*F.
Claim 2
Dependent Claim
75 words
A CATALYST COMPRISING FROM ABOUT 0.01 TO ABOUT 5% BY WEIGHT OF A CATALYTIC AGENT SELECTED FROM THE GROUP CONSISTING OF PLATINUM AND PALLADIUM IN COMBINATION WITH FROM ABOUT 0.05 TO ABOUT 20% BY WEIGHT, BASED ON THE TOTAL CATALYST, OF A COMPOUND OF A GROUP III METAL HAVING AN ATOMIC NUMBER OF AT LEAST 21 AND NOT MORE THAN 89 SUPPORTED ON AN INORGANIC METAL OXIDE NOT REDUCIBLE AT A TEMPERATURE BELOW ABOUT 1200*F.
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) | 1960-11-25 | 1961-05-27 | 1961-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-11-25 | 1965-05-27 | 1965-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-11-25 | 1969-05-27 | 1969-11-26 | $7700.00 | Window Closed / Lapsed |