US2705216A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for converting hydrocarbons
Assignee: —
•
Filing: —
•
Granted: 1955-03-29
•
Expires: 1972-03-29
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:08
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/0015; B01J8/003; C; C10; C10G; C10G11/00; C10G11/14; C10G11/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
144 words
AN IMPROVED METHOD OF EFFECTING CONTINUOUS CONTACTING OF A FLUID WITH A GRAVITATING MASS OF GRANULAR SOLIDS IN AN ENCLOSED CYCLIC SYSTEM WHICH COMPRISES: GRAVITATING SOLID CONTACT MATERIAL DOWNWARDLY AS A BED OF SOLIDS LOCATED ABOVE THE LOWER END OF AN UPWARDLY DIRECTED LIFT PASSAGE, GRAVITATING SOLID CONTACT MATERIAL DOWNWARDLY FROM THE BOTTOM OF THE BED TO THE BOTTOM OF THE LIFT PASSAGE AS A CONFINED, UNVENTED CONTINUOUS COLUMN, INTRODUCING A CONTACT FLUID INTO THE BED OF SOLID MATERIAL, PASSING AT LEAST A PORTION OF FLUID THROUGH THE BED OF CONTACT MATERIAL, WITHDRAWING AT LEAST A PORTION OF THE FLUID FROM THE BED, PASSING A SMALL PORTION OF THE FLUID DOWN THROUGH THE COLUMN OF CONTACT MATERIAL AT THE BOTTOM OF THE BED TO THE LOWER END OF THE LIFT PASSAGE, SO AS TO SERVE AS SECONDARY GAS IN MOVING PARTICLES OF SOLID MA-
Claim 2
Dependent Claim
144 words
AN IMPROVED METHOD OF EFFECTING CONTINUOUS CONTACTING OF A FLUID WITH A GRAVITATING MASS OF GRANULAR SOLIDS IN AN ENCLOSED CYCLIC SYSTEM WHICH COMPRISES: GRAVITATING SOLID CONTACT MATERIAL DOWNWARDLY AS A BED OF SOLIDS LOCATED ABOVE THE LOWER END OF AN UPWARDLY DIRECTED LIFT PASSAGE, GRAVITATING SOLID CONTACT MATERIAL DOWNWARDLY FROM THE BOTTOM OF THE BED TO THE BOTTOM OF THE LIFT PASSAGE AS A CONFINED, UNVENTED CONTINUOUS COLUMN, INTRODUCING A CONTACT FLUID INTO THE BED OF SOLID MATERIAL, PASSING AT LEAST A PORTION OF FLUID THROUGH THE BED OF CONTACT MATERIAL, WITHDRAWING AT LEAST A PORTION OF THE FLUID FROM THE BED, PASSING A SMALL PORTION OF THE FLUID DOWN THROUGH THE COLUMN OF CONTACT MATERIAL AT THE BOTTOM OF THE BED TO THE LOWER END OF THE LIFT PASSAGE, SO AS TO SERVE AS SECONDARY GAS IN MOVING PARTICLES OF SOLID MA-
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) | 1958-03-28 | 1958-09-27 | 1959-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-03-28 | 1962-09-27 | 1963-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-03-28 | 1966-09-27 | 1967-03-29 | $7700.00 | Window Closed / Lapsed |