Patent US2548295A successfully refreshed from Google Patents.
US2548295A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrocarbon conversion and catalyst regeneration apparatus
Assignee: ExxonMobil Oil Corp
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Filing: 1946-02-27
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Granted: 1951-04-10
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Expires: 1966-02-27
Abstract
No abstract record available.
Inventors
- 👤 Frank C Fahnestock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:11
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/08; B01J8/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
154 words
AN APPARATUS FOR CONVERSION OF HYDROCARBONS IN THE PRESENCE OF A PARTICLE FORM CATALYST WHICH COMPRISES: AN ELONGATED REACTION VESSEL HAVING A CATALYST INLET AT ITS UPPER END AND A CATALYST OUTLET AT ITS LOWER END, FLOW THROTTLING MEANS ASSOCIATED WITH SAID OUTLET, A PLURALITY OF SUPERPOSED SETS OF GAS DISTRIBUTING AND COLLECTING INVERTED TROUGH MEMBERS SPACED ACROSS SAID VESSEL AT SPACED VERTICAL INTERVALS; EACH SET COMPRISING TWO VERTICALLY SPACED ROWS OF HORTZONTALLY SPACED GAS COLLECTING TROUGH MEMBERS, THE TROUGHS IN THE UPPER ROW HAVING SERRATED LOWER EDGES AND THE TROUGH IN THE LOWER ROW HAVING SUBSTANTIALLY NON-SERRATED LOWER EDGES, AND A ROW OF GAS DISTRIBUTING TROUGH MEMBERS HAVING SERRATED LOWER EDGES SPACED SUBSTANTIALLY MIDWAY VERTICALLY BETWEEN SAID TWO ROWS OF GAS COLLECTING TROUGH MEMBERS; MEANS TO SUPPLY GASEOUS HYDROCARBON REACTANTS TO EACH OF SAID GAS DISTRIBUTING TROUGH MEMBERS AND MEANS TO WITHDRAW GASEOUS REACTION PRODUCTS FROM EACH OF SAID GAS COLLECTING TROUGH MEMBERS.
Claim 2
Independent Claim
154 words
AN APPARATUS FOR CONVERSION OF HYDROCARBONS IN THE PRESENCE OF A PARTICLE FORM CATALYST WHICH COMPRISES: AN ELONGATED REACTION VESSEL HAVING A CATALYST INLET AT ITS UPPER END AND A CATALYST OUTLET AT ITS LOWER END, FLOW THROTTLING MEANS ASSOCIATED WITH SAID OUTLET, A PLURALITY OF SUPERPOSED SETS OF GAS DISTRIBUTING AND COLLECTING INVERTED TROUGH MEMBERS SPACED ACROSS SAID VESSEL AT SPACED VERTICAL INTERVALS; EACH SET COMPRISING TWO VERTICALLY SPACED ROWS OF HORTZONTALLY SPACED GAS COLLECTING TROUGH MEMBERS, THE TROUGHS IN THE UPPER ROW HAVING SERRATED LOWER EDGES AND THE TROUGH IN THE LOWER ROW HAVING SUBSTANTIALLY NON-SERRATED LOWER EDGES, AND A ROW OF GAS DISTRIBUTING TROUGH MEMBERS HAVING SERRATED LOWER EDGES SPACED SUBSTANTIALLY MIDWAY VERTICALLY BETWEEN SAID TWO ROWS OF GAS COLLECTING TROUGH MEMBERS; MEANS TO SUPPLY GASEOUS HYDROCARBON REACTANTS TO EACH OF SAID GAS DISTRIBUTING TROUGH MEMBERS AND MEANS TO WITHDRAW GASEOUS REACTION PRODUCTS FROM EACH OF SAID GAS COLLECTING TROUGH MEMBERS.
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) | 1954-04-09 | 1954-10-09 | 1955-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-09 | 1958-10-09 | 1959-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-09 | 1962-10-09 | 1963-04-10 | $7700.00 | Window Closed / Lapsed |