US2859185A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reforming catalysts
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1953-07-28
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Granted: 1958-11-04
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Expires: 1973-07-28
Abstract
No abstract record available.
Inventors
- 👤 Jr Charles N Kimberlin
- 👤 Elroy M Gladrow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:42
CPC Classifications
C; C01; C01F; C01F7/00; C01F7/02; B; B01; B01J; B01J21/00; B01J21/02; B01J21/04
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
29 words
A METHOD OF PREPARING IMPROVED CATALYST SUPPORTS WHICH COMPRISES HYDROLYZING AN ALUMINUM ALCOHOLATE IN THE PRESENCE OF SULFERR DIOXIDE TO FORM AMORPHOUS ALUMINA, DRYING AND CALCINING SAID AMORPHOUS ALUMINA.
Claim 2
Independent Claim
29 words
A METHOD OF PREPARING IMPROVED CATALYST SUPPORTS WHICH COMPRISES HYDROLYZING AN ALUMINUM ALCOHOLATE IN THE PRESENCE OF SULFERR DIOXIDE TO FORM AMORPHOUS ALUMINA, DRYING AND CALCINING SAID AMORPHOUS ALUMINA.
Claim 3
Independent Claim
59 words
A METHOD OF PREPARING ACTIVE REFORMING CATALYST COMPOSITIONS WHICH COMPRISES HYDROLYZING AN ALUMINUM ALCOHOLATE IN THE PRESENCE OF SULFUR DIOXIDE TO FORM AMORPHOUS ALUMINA, HEATING SAID AMORPHOUS ALUMINA TO REMOVE WATER THEREFROM, DEPOSITING AN ACTIVE REFORMING CATALYST SELECTED FROM THE GROUP CONSISTING OF PLATINUM METALS AND GROUP VI METAL COMPOUNDS ON SAID AMORPHOUS ALUMINA AND ACTIVATING THE RESULTANT COMPOSITION.
Claim 4
Independent Claim
59 words
A METHOD OF PREPARING ACTIVE REFORMING CATALYST COMPOSITIONS WHICH COMPRISES HYDROLYZING AN ALUMINUM ALCOHOLATE IN THE PRESENCE OF SULFUR DIOXIDE TO FORM AMORPHOUS ALUMINA, HEATING SAID AMORPHOUS ALUMINA TO REMOVE WATER THEREFROM, DEPOSITING AN ACTIVE REFORMING CATALYST SELECTED FROM THE GROUP CONSISTING OF PLATINUM METALS AND GROUP VI METAL COMPOUNDS ON SAID AMORPHOUS ALUMINA AND ACTIVATING THE RESULTANT COMPOSITION.
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) | 1961-11-03 | 1962-05-05 | 1962-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-03 | 1966-05-05 | 1966-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-03 | 1970-05-05 | 1970-11-04 | $7700.00 | Window Closed / Lapsed |