US2499255A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalyst preparation
Assignee: Union Oil Company of California
•
Filing: 1944-09-18
•
Granted: 1950-02-28
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Expires: 1964-09-18
Abstract
No abstract record available.
Inventors
- 👤 Jr Robert L Parker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:12
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/70; B01J23/76; B01J23/84; B01J23/85; B01J23/88; B01J23/882; B01J23/16; B01J23/24; B01J23/28; B01J37/00; Y; Y10; Y10S; Y10S585/00; Y10S585/8995; Y10S585/906
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
A PROCESS FOR THE CATALYTIC CONVERSION OF HYDROCARBONS WHICH COMPRISES SUBJECTING SAID HYDROCARBONS TO A TEMPERATURE BETWEEN ABOUT ABOUT 700* F. AND ABOUT 1200*F. IN THE PRESENCE OF A CATALYST COMPRISING A MAJOR PROPORTION OF A CARRIER AND A MINOR PRORTION OF A MOLYBDENUM OXIDECONTAINING CATALYTIC AGENT, SAID CATALYST HAVING BEEN PREPARED BY A PROCESS WHICH COMPRISES COMMINGLING SAID CATALYTIC AGENT AND SAID CARRIER BOTH IN POWDERED FORM IN THE PROPORTIONS DESIRED IN THE FINAL PRODUCT, FORMING THE MIXTURE INTO PELLETS, AND HEATING THE PELLETS IN THE ABSENCE OF AGITATION, TO A TEMPERATURE BETWEEN ABOUT 1000*F. AND 1500*F. FOR A TIME SUFFICIENT TO SUBLIME SAID MOLYBDENUM OXIDE AND ABSORB THE SUBLIMED VAPORS ON THE CARRIER.
Claim 2
Dependent Claim
115 words
A PROCESS FOR THE CATALYTIC CONVERSION OF HYDROCARBONS WHICH COMPRISES SUBJECTING SAID HYDROCARBONS TO A TEMPERATURE BETWEEN ABOUT ABOUT 700* F. AND ABOUT 1200*F. IN THE PRESENCE OF A CATALYST COMPRISING A MAJOR PROPORTION OF A CARRIER AND A MINOR PRORTION OF A MOLYBDENUM OXIDECONTAINING CATALYTIC AGENT, SAID CATALYST HAVING BEEN PREPARED BY A PROCESS WHICH COMPRISES COMMINGLING SAID CATALYTIC AGENT AND SAID CARRIER BOTH IN POWDERED FORM IN THE PROPORTIONS DESIRED IN THE FINAL PRODUCT, FORMING THE MIXTURE INTO PELLETS, AND HEATING THE PELLETS IN THE ABSENCE OF AGITATION, TO A TEMPERATURE BETWEEN ABOUT 1000*F. AND 1500*F. FOR A TIME SUFFICIENT TO SUBLIME SAID MOLYBDENUM OXIDE AND ABSORB THE SUBLIMED VAPORS ON THE CARRIER.
References Cited (Backward Citations)
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US2223777A
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US2301802A
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US2324165A
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US2365895A
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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) | 1953-02-27 | 1953-08-29 | 1954-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-27 | 1957-08-29 | 1958-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-27 | 1961-08-29 | 1962-02-28 | $7700.00 | Window Closed / Lapsed |