US3567402A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reactor with axially disposed heated tube with valve
Assignee: Phillips Petroleum Co
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Filing: 1969-01-17
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Granted: 1971-03-02
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Expires: 1989-01-17
Abstract
Abstract AN ADIABATIC REACTOR HAS AXIALLY POSITIONED THEREIN A VERTICAL JACKETED TUBE PROVIDED WITH AN AUGER TO CIRCULATE MATERIAL THROUGH THE TUBE, SAID TUBE HAVING A VALVE MEANS AT THE BOTTOM THEREOF TO RESTRICT CIRCULATION. TEMPERATURE WITHIN THE JACKETED TUBE IS SENSED AND SIGNAL GENERATED THEREBY UTILIZED TO CONTROL HEAT TO SAID JACKET AND TO OPEN SAID VALVE.
Inventors
- 👤 Don C Christensen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 00:53
CPC Classifications
C; C08; C08F; C08F36/00; C08F36/02; C08F36/04; B; B01; B01F; B01F35/00; B01F35/90; B01F35/93; B01J; B01J19/00; B01J19/0006; B01J19/0013; B01J19/18; B01J19/1868; B01J19/1875; B01J19/20; B01J2219/00; B01J2219/00049; B01J2219/00051; B01J2219/00054; B01J2219/00056; B01J2219/00058; B01J2219/00074; B01J2219/00076; B01J2219/00085
Claims Analysis
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-03-01 | 1974-08-31 | 1975-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-01 | 1978-08-31 | 1979-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-01 | 1982-08-31 | 1983-03-02 | $7700.00 | Window Closed / Lapsed |