US2625467A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for flowing gases
Assignee: —
•
Filing: —
•
Granted: 1953-01-13
•
Expires: 1970-01-13
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:21
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/08; B01J8/12; B01J8/125; B01J8/02; B01J8/0278; B01J8/18; B01J8/1818; B01J8/24; B01J8/44
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
97 words
AN APPARATUS FOR CONTACTING DOWNWARDLY MOVING FLUENT SOLID PARTICLES WITH GAS, SAID APPARATUS COMPRISING A HOUSING FOR CONFINING A BED OF SAID PARTICLES, A GAS MANIFOLD, A PLURALITY OF HORIZONTALLY ELONGATED CONDUITS IN GASEOUS COMMUNICATION WITH SAID MANIFOLD AND SPACED FROM EACH OTHER OVER SUBSTANTIALLY THE FULL EXTENT OF A HORIZONTAL CROSS SECTIONAL AREA OF SAID BED, SAID CONDUITS BEING OPEN AT THE BOTTOM AND DEFINING A GAS CONTAINING CHAMBER HAVING AN APPRECIABLE VERTICAL HEIGHT, AND APERTURED PARTITIONS IN EACH OF SAID CONDUITS, SAID PARTITIONS SLOPING UPWARDLY FROM THE ENDS OF SAID CONDUITS ADJACENT TO SAID MANIFOLD.
References Cited (Backward Citations)
US2495786A
Cited
US2158411A
Cited
US2440475A
Cited
US2429721A
Cited
US2458358A
Cited
US2458434A
Cited
US2458435A
Cited
US2485487A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-01-13 | 1956-07-14 | 1957-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-01-13 | 1960-07-14 | 1961-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-01-13 | 1964-07-14 | 1965-01-13 | $7700.00 | Window Closed / Lapsed |