US2723946A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrocarbon conversion process
Assignee: Universal Oil Products Co
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Filing: 1950-05-29
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Granted: 1955-11-15
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Expires: 1970-05-29
Abstract
No abstract record available.
Inventors
- 👤 George R Donaldson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:54
CPC Classifications
C; C10; C10G; C10G35/00; C10G35/04; C10G35/06; C10G35/085
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
IN THE REFORMING OF A HYDROCARBON CHARGE STOCK BOILING APPROXIMATELY WITHIN THE GASOLINE RANGE AND HAVING A RELATIVELY HIGH END POINT IN THE PRESENCE OF HYDROGEN AND A CATALYST CONTAINING A METAL OF THE GROUP CONSISTING OF PLATINUM AND PALLADIUM, THE METHOD WHICH COMPRISES REFORMING SAID STOCK UNTIL THE CATALYST HAS LOST ACTIVITY, DISCONTINUING THE REFORMING OF SAID CHARGE STOCK AND SUBSTITUTING THEREFOR A NORMALLY LIQUID HYDROCARBON CHARGE STOCK OF LOWER END POINT, REFORMING SAID LATTER STOCK IN THE PRESENCE OF HYDROGEN UNTIL AT LEAST A PORTION OF THE LOST ACTIVITY HAS BEEN RESTORED, AND THEREAFTER DISCONTINUING THE REFORMING OF SAID LATTER STOCK AND RESUMING THE REFORMING OF SAID FIRST STOCK.
Claim 2
Dependent Claim
111 words
IN THE REFORMING OF A HYDROCARBON CHARGE STOCK BOILING APPROXIMATELY WITHIN THE GASOLINE RANGE AND HAVING A RELATIVELY HIGH END POINT IN THE PRESENCE OF HYDROGEN AND A CATALYST CONTAINING A METAL OF THE GROUP CONSISTING OF PLATINUM AND PALLADIUM, THE METHOD WHICH COMPRISES REFORMING SAID STOCK UNTIL THE CATALYST HAS LOST ACTIVITY, DISCONTINUING THE REFORMING OF SAID CHARGE STOCK AND SUBSTITUTING THEREFOR A NORMALLY LIQUID HYDROCARBON CHARGE STOCK OF LOWER END POINT, REFORMING SAID LATTER STOCK IN THE PRESENCE OF HYDROGEN UNTIL AT LEAST A PORTION OF THE LOST ACTIVITY HAS BEEN RESTORED, AND THEREAFTER DISCONTINUING THE REFORMING OF SAID LATTER STOCK AND RESUMING THE REFORMING OF SAID FIRST STOCK.
References Cited (Backward Citations)
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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) | 1958-11-14 | 1959-05-16 | 1959-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-11-14 | 1963-05-16 | 1963-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-11-14 | 1967-05-16 | 1967-11-15 | $7700.00 | Window Closed / Lapsed |