US2514288A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for carrying out catalytic reactions
Assignee: Standard Oil Development Co
•
Filing: 1942-12-29
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Granted: 1950-07-04
•
Expires: 1962-12-29
Abstract
No abstract record available.
Inventors
- 👤 Edward W S Nicholson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:18
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/18; B01J8/24; B01J8/26; B01J8/1845; B01J8/1854; B01J8/38; B01J8/384; B01J8/388; Y; Y10; Y10S; Y10S48/00; Y10S48/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
AN APPARATUS FOR CARRYING OUT REACTIONS WHICH INCLUDES A VERTICALLY ARRANGED INNER VESSEL OPEN AT ITS UPPER END, MEANS FOR INTRODUCING A GASIFORM FLUID AND A POWDERED SOLID INTO THE LOWER PORTION OF SAID VESSEL, MEANS FOR SEPARATING POWDERED SOLID FROM GASIFORM FLUID LEAVING THE UPPER END OF SAID VESSEL, AN INTERMEDIATE VESSEL SURROUNDING SAID INNER VESSEL TO PROVIDE A SPACE FOR RECEIVING SEPARATED SOLID MATERIAL, AN OUTER VESSEL SURROUNDING AND SPACED FROM SAID INTERMEDIATE VESSEL AND FORMING A SOLID MATERIAL RECEIVING ZONE, SAID INTERMEDIATE VESSEL TERMINATING ABOVE THE BOTTOM OF SAID OUTER VESSEL FOR DELIVERING SOLID MATERIAL TO SAID OUTER VESSEL, MEANS FOR INTRODUCING A GASIFORM FLUID INTO SAID OUTER VESSEL, AND MEANS FOR WITHDRAWING SOLID MATERIAL FROM SAID OUTER VESSEL AND RETURNING IT TO SAID INNER VESSEL.
Claim 2
Independent Claim
129 words
AN APPARATUS FOR CARRYING OUT REACTIONS WHICH INCLUDES A VERTICALLY ARRANGED INNER VESSEL OPEN AT ITS UPPER END, MEANS FOR INTRODUCING A GASIFORM FLUID AND A POWDERED SOLID INTO THE LOWER PORTION OF SAID VESSEL, MEANS FOR SEPARATING POWDERED SOLID FROM GASIFORM FLUID LEAVING THE UPPER END OF SAID VESSEL, AN INTERMEDIATE VESSEL SURROUNDING SAID INNER VESSEL TO PROVIDE A SPACE FOR RECEIVING SEPARATED SOLID MATERIAL, AN OUTER VESSEL SURROUNDING AND SPACED FROM SAID INTERMEDIATE VESSEL AND FORMING A SOLID MATERIAL RECEIVING ZONE, SAID INTERMEDIATE VESSEL TERMINATING ABOVE THE BOTTOM OF SAID OUTER VESSEL FOR DELIVERING SOLID MATERIAL TO SAID OUTER VESSEL, MEANS FOR INTRODUCING A GASIFORM FLUID INTO SAID OUTER VESSEL, AND MEANS FOR WITHDRAWING SOLID MATERIAL FROM SAID OUTER VESSEL AND RETURNING IT TO SAID INNER VESSEL.
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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) | 1953-07-03 | 1954-01-02 | 1954-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-03 | 1958-01-02 | 1958-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-03 | 1962-01-02 | 1962-07-04 | $7700.00 | Window Closed / Lapsed |