Patent US2547221A successfully refreshed from Google Patents.
US2547221A
Expired / Lapsed
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Catalytic reforming of hydrocarbons in the presence of hydrogen
Assignee: MW Kellogg Co
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Filing: 1947-07-05
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Granted: 1951-04-03
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Expires: 1967-07-05
Abstract
No abstract record available.
Inventors
- 👤 Edwin T Layng
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:31
CPC Classifications
C; C10; C10G; C10G35/00; C10G35/22; B; B01; B01J; B01J23/00; B01J23/16; Y; Y10; Y10S; Y10S585/00; Y10S585/8995; Y10S585/906
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
THE METHOD OF REFORMING A HYDROCARBON IN THE PRESENCE OF A CATALYST WHICH CONSISTS ESSENTIALLY OF A REDUCIBLE METAL OXIDE OF GROUP VI OF THE PERIODIC SYSTEM CARRIED ON AN ALUMINACONTAINING BASE AND ADDED FREE HYDROGEN IN WHICH OPERATION THE REACTION TAKES PLACE UNDER SUPERATMOSPHERIC PRESSURE AND WHICH OPERATION REQUIRES PERIODIC REGENERATION OF THE CATALYST, THE IMPROVEMENT WHICH COMPRISES SUBJECTING THE CATALYST AFTER REGENERATION TO A PURGING OPERATION WITH FREE HYDROGEN OR FREE HYDROGEN-CONTAINING
Claim 2
Independent Claim
74 words
THE METHOD OF REFORMING A HYDROCARBON IN THE PRESENCE OF A CATALYST WHICH CONSISTS ESSENTIALLY OF A REDUCIBLE METAL OXIDE OF GROUP VI OF THE PERIODIC SYSTEM CARRIED ON AN ALUMINACONTAINING BASE AND ADDED FREE HYDROGEN IN WHICH OPERATION THE REACTION TAKES PLACE UNDER SUPERATMOSPHERIC PRESSURE AND WHICH OPERATION REQUIRES PERIODIC REGENERATION OF THE CATALYST, THE IMPROVEMENT WHICH COMPRISES SUBJECTING THE CATALYST AFTER REGENERATION TO A PURGING OPERATION WITH FREE HYDROGEN OR FREE HYDROGEN-CONTAINING
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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) | 1954-04-02 | 1954-10-02 | 1955-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-02 | 1958-10-02 | 1959-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-02 | 1962-10-02 | 1963-04-03 | $7700.00 | Window Closed / Lapsed |