US2884382A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reforming catalyst
Assignee: ExxonMobil Oil Corp
•
Filing: 1955-10-05
•
Granted: 1959-04-28
•
Expires: 1975-10-05
Abstract
No abstract record available.
Inventors
- 👤 Stephen M Oleck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:49
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/38; B01J23/40; B01J21/00; B01J21/16; B01J23/42; B01J27/00; B01J27/06; B01J27/128; B01J27/13; B01J37/00; B01J37/02; B01J37/03
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
A METHOD OF MANUFACTURING A CATALYST, WHICH COMPRISES PRETREATING POROUS ALUMINA TO REPLACE SUBSTANTIALLY ALL OF THE AIR IN THE PORES THEROF WITH GASEOUS CARBON DIOXIDE AND THEREAFTER WHILE MAINTAINING THE TREATED ALUMINA OUT OF CONTACT WITH AIR, EFFECTING IMPREGNATION THEROF WITH A SOLUABLE OF CHLOROPLATINIC ACID IN AN AMOUNT TO FORM A FINAL CATALYST CONTAINING FROM ABOUT 0.05% TO ABOUT 5% BY WEIGHT OF PLANTINUM AND CALCINING THE RESULTING COMPOSITE AT A TEMPERATURE OF FROM ABOUT 500* F. TO ABOUT 1000*F.
Claim 2
Independent Claim
82 words
A METHOD OF MANUFACTURING A CATALYST, WHICH COMPRISES PRETREATING POROUS ALUMINA TO REPLACE SUBSTANTIALLY ALL OF THE AIR IN THE PORES THEROF WITH GASEOUS CARBON DIOXIDE AND THEREAFTER WHILE MAINTAINING THE TREATED ALUMINA OUT OF CONTACT WITH AIR, EFFECTING IMPREGNATION THEROF WITH A SOLUABLE OF CHLOROPLATINIC ACID IN AN AMOUNT TO FORM A FINAL CATALYST CONTAINING FROM ABOUT 0.05% TO ABOUT 5% BY WEIGHT OF PLANTINUM AND CALCINING THE RESULTING COMPOSITE AT A TEMPERATURE OF FROM ABOUT 500* F. TO ABOUT 1000*F.
References Cited (Backward Citations)
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Cited
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Cited
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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) | 1962-04-27 | 1962-10-27 | 1963-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-27 | 1966-10-27 | 1967-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-27 | 1970-10-27 | 1971-04-28 | $7700.00 | Window Closed / Lapsed |