US3812090A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for performing gas-phase reactions under pressure
Assignee: ThyssenKrupp Industrial Solutions AG
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Filing: 1972-08-30
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Granted: 1974-05-21
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Expires: 1992-08-30
Abstract
Abstract A MIXTURE OF GASEOUS INITIATOR AND CARRIER GAS IS FED DIRECTLY TO A CLOSED REACTOR, AT POINTS SUITABLE FOR INITIATING AND MAINTAINING THE GAS-PHASE REACTION IN THE REACTOR. THE RATE OF INJECTION OF SUCH MIXTURE AT EACH POINT IS CONTROLLED IN ACCORDANCE WITH THE TEMPERATURE IN THE REACTOR AT SUCH POINT, TO MAINTAIN A CONSTANT TEMPERATURE AT SUCH POINT.
Inventors
- 👤 H Peters
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:23
CPC Classifications
B; B01; B01J; B01J12/00; C; C08; C08F; C08F10/00
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) | 1977-05-20 | 1977-11-19 | 1978-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-05-20 | 1981-11-19 | 1982-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-05-20 | 1985-11-19 | 1986-05-21 | $7700.00 | Window Closed / Lapsed |