US2537272A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of regenerating a moving catalyst
Assignee: Universal Oil Products Co
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Filing: 1940-04-22
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Granted: 1951-01-09
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Expires: 1960-04-22
Abstract
No abstract record available.
Inventors
- 👤 Louis S Kassel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:07
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/08; B01J8/12; B01J38/00; B01J38/04; B01J38/12; B01J8/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
55 words
THE METHOD OF REGENERATING SPENT CATALYST FOULED WITH CARBONACEOUS CONTAMINANTS IN A SYSTEM WHEREIN THE SPENT CATALYST MOVES CONTINUOUSLY THROUGH A REGENERATION ZONE WHICH COMPRISES, ADMIXING COOL REGENERATED CATALYST WITH THE SPENT CATALYST AND TREATING THE MIXTURE WITH A GAS CONTAINING FREE OXYGEN UNDER CONDITIONS SUCH AS TO CAUSE THE COMBUSTION OF THE CARBONACEOUS CONTAMINANTS.
Claim 2
Independent Claim
55 words
THE METHOD OF REGENERATING SPENT CATALYST FOULED WITH CARBONACEOUS CONTAMINANTS IN A SYSTEM WHEREIN THE SPENT CATALYST MOVES CONTINUOUSLY THROUGH A REGENERATION ZONE WHICH COMPRISES, ADMIXING COOL REGENERATED CATALYST WITH THE SPENT CATALYST AND TREATING THE MIXTURE WITH A GAS CONTAINING FREE OXYGEN UNDER CONDITIONS SUCH AS TO CAUSE THE COMBUSTION OF THE CARBONACEOUS CONTAMINANTS.
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) | 1954-01-08 | 1954-07-10 | 1955-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-08 | 1958-07-10 | 1959-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-08 | 1962-07-10 | 1963-01-09 | $7700.00 | Window Closed / Lapsed |