US2534859A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for hydrocarbon conversion
Assignee: ExxonMobil Oil Corp
•
Filing: 1946-04-18
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Granted: 1950-12-19
•
Expires: 1966-04-18
Abstract
No abstract record available.
Inventors
- 👤 Louis P Evans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:52
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/08; B01J8/087; B01J8/12; B01J2208/00; B01J2208/00008; B01J2208/00017; B01J2208/00106; B01J2208/00115; B01J2208/00132; B01J2219/00; B01J2219/19; B01J2219/194; B01J2219/1941; B01J2219/1946
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
A METHOD FOR CONDUCTING REACTIONS INVOLVING GASEOUS MATERIALS IN THE PRESENCE OF A PARTICLE FORM SOLID CONTACT MATERIAL WHICH COMPRISES; MAINTAINING A SUBSTANTIALY COMPACT CONFINED, VERTICAL COLUMN OF PARTICLE FORM CONTACT MATERIAL, EFFECTING A PROGRESSIVE INCREASE IN WIDTH IN ONE HORIZONTAL DIRECTION FROM THE UPPER TO THE LOWER END OF SAID COLUMN, SUPLYING PARTICLE FORM CONTACT MATERIAL TO THE UPPER END OF SAID COLUMN AND WITHDRAWING PARTICLE FORM CONTACT MATERIAL FROM THE LOWER END THEREOF, PASSING GASEOUS REACTANT TRANSVERSELY ACROSS SAID COLUMN IN THE DIRECTION OF ITS VARYING WIDTH INDEPENDENTLY AT A PLURALITY OF VERTICALLY SPACED APART SECTIONS OF SUBSTANTIAL VERTICAL LENGTH, MAINTAINING THE GAS FLOW OPOSITE IN DIRECTION IN SUCCESSIVE SECTIONS, AND SUBSTANTIALLY EXCLUDING GASEOUS FLOW IN THE PORTIONS OF SAID COLUMN BETWEEN SAID SECTIONS.
Claim 2
Independent Claim
126 words
A METHOD FOR CONDUCTING REACTIONS INVOLVING GASEOUS MATERIALS IN THE PRESENCE OF A PARTICLE FORM SOLID CONTACT MATERIAL WHICH COMPRISES; MAINTAINING A SUBSTANTIALY COMPACT CONFINED, VERTICAL COLUMN OF PARTICLE FORM CONTACT MATERIAL, EFFECTING A PROGRESSIVE INCREASE IN WIDTH IN ONE HORIZONTAL DIRECTION FROM THE UPPER TO THE LOWER END OF SAID COLUMN, SUPLYING PARTICLE FORM CONTACT MATERIAL TO THE UPPER END OF SAID COLUMN AND WITHDRAWING PARTICLE FORM CONTACT MATERIAL FROM THE LOWER END THEREOF, PASSING GASEOUS REACTANT TRANSVERSELY ACROSS SAID COLUMN IN THE DIRECTION OF ITS VARYING WIDTH INDEPENDENTLY AT A PLURALITY OF VERTICALLY SPACED APART SECTIONS OF SUBSTANTIAL VERTICAL LENGTH, MAINTAINING THE GAS FLOW OPOSITE IN DIRECTION IN SUCCESSIVE SECTIONS, AND SUBSTANTIALLY EXCLUDING GASEOUS FLOW IN THE PORTIONS OF SAID COLUMN BETWEEN SAID SECTIONS.
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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) | 1953-12-18 | 1954-06-19 | 1954-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-12-18 | 1958-06-19 | 1958-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-12-18 | 1962-06-19 | 1962-12-19 | $7700.00 | Window Closed / Lapsed |