Patent US2982720A successfully refreshed from Google Patents.
US2982720A
Expired / Lapsed
US
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Catalysts and catalytic hydrocarbon conversion processes
Assignee: BP PLC
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Filing: 1957-08-06
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Granted: 1961-05-02
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Expires: 1977-08-06
Abstract
No abstract record available.
Inventors
- 👤 Yeo Alan Arthur
- 👤 Turner Roy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:10
CPC Classifications
B; B01; B01J; B01J27/00; B01J27/14; B01J27/185; B01J27/1853; B01J23/00; B01J23/70; B01J37/00; B01J37/02; B01J37/0201
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
A PROCESS FOR THE CATALYTIC CONVERSION OF A PETROLEUM HYDROCARBON IN A VAPOR PHASE AT AN ELEVATED TEMPERATURE WITH A COMPLEX CATALYST, SAID COMPLEX CATALYST BEING PREPARED BY IMPREGNATING AN AMPHOTERIC OXIDE WITH A SOLUTION OF A METAL COMPOUND SELECTED FROM THE GROUP CONSISTING OF NICKLE, COBALT AND IRON, SAID METAL BEING DECOMPOSABLE UNDER THE ACTION OF HEAT TO THE OXIDE THEREOF, ROASTING THE IMPREGNATED OXIDE AT A TEMPERATURE THE ROASTED OXIDE WITH AN INORGANIC ACID TO EXTRACT A CATALYST BASE, FURTHER IMPREGNATING THE EXTRACTED BASE WITH SOLUTION OF A METAL COMPOUND SELECTED FROM THE GROUP CONSISTING OF NICKEL, COBALT, IRON, PLATINUM, INDIUM, PALLADIUM, CHROMIUM, AND MOLYBDENUM, AND ROASTING THE FURTHER I
Claim 2
Dependent Claim
112 words
A PROCESS FOR THE CATALYTIC CONVERSION OF A PETROLEUM HYDROCARBON IN A VAPOR PHASE AT AN ELEVATED TEMPERATURE WITH A COMPLEX CATALYST, SAID COMPLEX CATALYST BEING PREPARED BY IMPREGNATING AN AMPHOTERIC OXIDE WITH A SOLUTION OF A METAL COMPOUND SELECTED FROM THE GROUP CONSISTING OF NICKLE, COBALT AND IRON, SAID METAL BEING DECOMPOSABLE UNDER THE ACTION OF HEAT TO THE OXIDE THEREOF, ROASTING THE IMPREGNATED OXIDE AT A TEMPERATURE THE ROASTED OXIDE WITH AN INORGANIC ACID TO EXTRACT A CATALYST BASE, FURTHER IMPREGNATING THE EXTRACTED BASE WITH SOLUTION OF A METAL COMPOUND SELECTED FROM THE GROUP CONSISTING OF NICKEL, COBALT, IRON, PLATINUM, INDIUM, PALLADIUM, CHROMIUM, AND MOLYBDENUM, AND ROASTING THE FURTHER I
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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) | 1964-05-01 | 1964-10-31 | 1965-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-01 | 1968-10-31 | 1969-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-01 | 1972-10-31 | 1973-05-02 | $7700.00 | Window Closed / Lapsed |