US2592121A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Regeneration of a moving bed catalyst at a uniform burning rate
Assignee: ExxonMobil Oil Corp
•
Filing: 1948-07-08
•
Granted: 1952-04-08
•
Expires: 1968-07-08
Abstract
No abstract record available.
Inventors
- 👤 Jr John A Crowley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:34
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/08; B01J8/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
A METHOD FOR REGENERATING A PARTICLE FORM SOLID CONTACT MASS MATERIAL BEARING A CARBONACEOUS CONTAMINANT DEPOSIT COMPRISING: PASSING SAID SOLID MATERIAL DOWNWARDLY THROUGH A CONFINED ZONE AS A SUBSTANTIALLY COMPACT COLUMN WHILE CAUSING IT, AS IT FLOWS DOWNWARDLY, TO FOLLOW A TEMPERATURE PATTERN WHEREIN IT GRADUALLY RISES TO A PEAK AND THEN GRADUALLY DECLINES TO A MINIMUM FOLLOWED BY A REPETITION OF THIS CYCLE A PLURALITY OF TIMES, THE PEAK TEMPERATURES BEING.
Claim 2
Independent Claim
72 words
A METHOD FOR REGENERATING A PARTICLE FORM SOLID CONTACT MASS MATERIAL BEARING A CARBONACEOUS CONTAMINANT DEPOSIT COMPRISING: PASSING SAID SOLID MATERIAL DOWNWARDLY THROUGH A CONFINED ZONE AS A SUBSTANTIALLY COMPACT COLUMN WHILE CAUSING IT, AS IT FLOWS DOWNWARDLY, TO FOLLOW A TEMPERATURE PATTERN WHEREIN IT GRADUALLY RISES TO A PEAK AND THEN GRADUALLY DECLINES TO A MINIMUM FOLLOWED BY A REPETITION OF THIS CYCLE A PLURALITY OF TIMES, THE PEAK TEMPERATURES BEING.
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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) | 1955-04-08 | 1955-10-08 | 1956-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-08 | 1959-10-08 | 1960-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-08 | 1963-10-08 | 1964-04-08 | $7700.00 | Window Closed / Lapsed |