Patent US2495262A successfully refreshed from Google Patents.
US2495262A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalytic treatment and the regeneration of catalyst in stationary beds
Assignee: Hydrocarbon Research Inc
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Filing: 1947-01-21
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Granted: 1950-01-24
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Expires: 1967-01-21
Abstract
No abstract record available.
Inventors
- 👤 Keith Percival Cleveland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:21
CPC Classifications
C; C10; C10G; C10G11/00; B; B01; B01J; B01J38/00; B01J38/04; B01J38/12; B01J8/00; B01J8/02; B01J8/04; B01J8/0446; B01J8/0449; B01J8/0453; C10G11/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
IN THE CATALYTIC TREATMENT OF A REACTANT FEED INCLUDING PERIODIC REGENERATION OF THE CATALYST, THE STEPS WHICH COMPRISE SUPPLYING SAID REACTANT FEED UNDER REACTION CONDITIONS TO A CENTRAL POINT IN THE CATALYST MASS AND DIRECTING SAID REACTANT FEED IN CONTACT WITH SAID CATALYST MASS TOWARD ONE EXTREMITY THEREOF, INTRODUCING A CATALYST REGENERATING AGENT AT THE OTHER EXTREMITY OF SAID CATALYST MASS WHILE WITHDRAWING REACTION AND REGENERATION PRODUCTS FROM THE FIRSTNAMED EXTREMITY, AND THEREAFTER, PERIODICALLY REVERSING THE FLOW OF THE REACTANT FEED THROUGH SAID MASS BY INTRODUCING THE REGENERATING AGENT AT THE FIRST-NAMED EXTREMITY OF SAID MASS AND
Claim 2
Dependent Claim
97 words
IN THE CATALYTIC TREATMENT OF A REACTANT FEED INCLUDING PERIODIC REGENERATION OF THE CATALYST, THE STEPS WHICH COMPRISE SUPPLYING SAID REACTANT FEED UNDER REACTION CONDITIONS TO A CENTRAL POINT IN THE CATALYST MASS AND DIRECTING SAID REACTANT FEED IN CONTACT WITH SAID CATALYST MASS TOWARD ONE EXTREMITY THEREOF, INTRODUCING A CATALYST REGENERATING AGENT AT THE OTHER EXTREMITY OF SAID CATALYST MASS WHILE WITHDRAWING REACTION AND REGENERATION PRODUCTS FROM THE FIRSTNAMED EXTREMITY, AND THEREAFTER, PERIODICALLY REVERSING THE FLOW OF THE REACTANT FEED THROUGH SAID MASS BY INTRODUCING THE REGENERATING AGENT AT THE FIRST-NAMED EXTREMITY OF SAID MASS AND
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) | 1953-01-23 | 1953-07-25 | 1954-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-23 | 1957-07-25 | 1958-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-23 | 1961-07-25 | 1962-01-24 | $7700.00 | Window Closed / Lapsed |