US3565790A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid powder reaction system
Assignee: Individual
•
Filing: 1966-04-13
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Granted: 1971-02-23
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Expires: 1986-04-13
Abstract
Abstract A PROCESS AND APPARATUS FOR CONTACTING A GAS WITH A FINELY DIVIDED SOLIDS IN A REACTOR. A SUSPENSION OF THE FINELY DIVIDED SOLIDS FLOWS DOWNWARDLY IN THE REACTOR. D R A W I N G
Inventors
- 👤 Eugene F Schwarzenbek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 06:12
CPC Classifications
C; C10; C10G; C10G11/00; C10G11/14; C10G11/18; B; B01; B01J; B01J8/00; B01J8/18; C21; C21B; C21B13/00; C21B13/0033; Y; Y02; Y02P; Y02P10/00; Y02P10/10; Y02P10/134
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-22 | 1974-08-24 | 1975-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-22 | 1978-08-24 | 1979-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-22 | 1982-08-24 | 1983-02-23 | $7700.00 | Window Closed / Lapsed |