US3556738A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Exothermic catalytic gas reactor
Assignee: Individual
•
Filing: 1967-07-24
•
Granted: 1971-01-19
•
Expires: 1987-07-24
Abstract
Abstract IN A CYLINDRICAL HIGH PRESSURE REACTOR, FOR INSTANCE FOR AMMONIA SYNTHESIS, A SYSTEM OF CONCENTRIC FRESH GAS COOLING TUBES ARRANGED WITH A SURFACE DECREASING TOWARDS THE BOTTOM, WHICH EXTENDS THROUGH THE ENTIRE CATALYZER SPACE IN AN AXIAL PLANE ACCORDING TO HEIGHT AND BREADTH. BAFFLE PLATES ARE ARRANGED HORIZONTALLY IN THE CATALYZER COLUMN WITH ALTERNATING PERIPHERAL RECESSES TO GUIDE THE STREAM OF REACTION GAS IN A VARIABLE HORIZONTAL DIRECTION TRANSVERSELY THROUGH THE COOLING TUBE SYSTEM.
Inventors
- 👤 Robert Schober
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:49
CPC Classifications
C; C01; C01C; C01C1/00; C01C1/02; C01C1/04; C01C1/0405; C01C1/0417; C01C1/0423; B; B01; B01J; B01J8/00; B01J8/02; B01J8/04; B01J8/0403; B01J8/0407; B01J8/0415; B01J8/0496; B01J2208/00; B01J2208/00008; B01J2208/00017; B01J2208/00106; B01J2208/00168; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/52
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1974-01-18 | 1974-07-20 | 1975-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-18 | 1978-07-20 | 1979-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-18 | 1982-07-20 | 1983-01-19 | $7700.00 | Window Closed / Lapsed |