US2533666A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrocarbon synthesis
Assignee: Standard Oil Co
•
Filing: 1945-12-29
•
Granted: 1950-12-12
•
Expires: 1965-12-29
Abstract
No abstract record available.
Inventors
- 👤 Robert C Gunness
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:08
CPC Classifications
C; C07; C07C; C07C1/00; C07C1/02; C07C1/04; C07C1/0405; C07C1/042; C07C1/041; C07C1/0415
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
A PROCESS FOR CARRYING OUT CHEMICAL REACTIONS WHICH COMPRISES PASSING A FLUIDIZED MASS OF SOLID PARTICLES OF SMALL PARTICLES IN SIZE IN A GASEOUS MEDIUM UPWARDLY THROUGH A CONFINED PASSAGEWAY FORMED BY HEAT EXCHANGE SURFACES ARRANGED AND TERMINATING WITHIN A LARGE ENCLOSED ZONE, PASSING SOLID PARTICLES AND GASEOUS MEDIUM UPWARDLY FROM SAID PASSAGEWAY INTO A SPACE OF LARGER CROSS-SECTIONAL AREA THAN SAID PASSAGEWAY SO THAT SOME OF THE PARTICLES SETTLE OUT OF THE GASEOUS MEDIUM, PASSING SAID SETTLED PARTICLES DOWNWARDLY IN CONTACT WITH HEAT EXCHANGE SURFACES IN SAID LARGE ENCLOSED ZONE TO COOL THE SOLID PARTICLES, MIXING THE COOLED PARTICLES WITH ADDITIONAL GASEOUS MEDIUM, AND PASSING THE LAST NAMED MIXTURE AS A FLUIDIZED MASS THROUGH THE SAID PASSAGEWAY.
Claim 2
Dependent Claim
118 words
A PROCESS FOR CARRYING OUT CHEMICAL REACTIONS WHICH COMPRISES PASSING A FLUIDIZED MASS OF SOLID PARTICLES OF SMALL PARTICLES IN SIZE IN A GASEOUS MEDIUM UPWARDLY THROUGH A CONFINED PASSAGEWAY FORMED BY HEAT EXCHANGE SURFACES ARRANGED AND TERMINATING WITHIN A LARGE ENCLOSED ZONE, PASSING SOLID PARTICLES AND GASEOUS MEDIUM UPWARDLY FROM SAID PASSAGEWAY INTO A SPACE OF LARGER CROSS-SECTIONAL AREA THAN SAID PASSAGEWAY SO THAT SOME OF THE PARTICLES SETTLE OUT OF THE GASEOUS MEDIUM, PASSING SAID SETTLED PARTICLES DOWNWARDLY IN CONTACT WITH HEAT EXCHANGE SURFACES IN SAID LARGE ENCLOSED ZONE TO COOL THE SOLID PARTICLES, MIXING THE COOLED PARTICLES WITH ADDITIONAL GASEOUS MEDIUM, AND PASSING THE LAST NAMED MIXTURE AS A FLUIDIZED MASS THROUGH THE SAID PASSAGEWAY.
References Cited (Backward Citations)
US1984380A
Cited
US2253486A
Cited
US2421677A
Cited
US2357901A
Cited
US2360787A
Cited
US2409234A
Cited
US2416729A
Cited
US2373008A
Cited
US2394814A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-12-11 | 1954-06-12 | 1954-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-12-11 | 1958-06-12 | 1958-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-12-11 | 1962-06-12 | 1962-12-12 | $7700.00 | Window Closed / Lapsed |