US2788260A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heating oxygen-contaminated halogencontaining vapors
Assignee: EIDP Inc
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Filing: 1954-03-01
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Granted: 1957-04-09
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Expires: 1974-03-01
Abstract
No abstract record available.
Inventors
- 👤 Christian E Rick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:59
CPC Classifications
C; C01; C01G; C01G23/00; C01G23/04; C01G23/047; C01G23/07; C01B; C01B7/00; C01G23/02; C01G23/022; C01G23/024
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
IN A PROCESS FOR HEATING A VAPOROUS OXYGEN-CONTAMINATED INORGANIC HALOGEN-CONTAINING REAGENT TO A TEMPERATURE ABOVE 400*C. IN AN ELECTRICALLY HEATED HEAT EXCHANGER PROVIDED WITH HEATED VAPOR CONTACTING SURFACES OF CARBON, THE STEP COMPRISING ADDING TO SAID VAPORS, BEFORE PASSAGE THROUGH SAID HEATER, AN ORGANIC HALIDE SELECTED FROM THE GROUP CONSISTING OF HALOCARBONS AND HALOHYDROCARBONS, THE HYDROGEN ATOMS PRESENT IN SAID HALOHYDROCARBONS BEING LESS THAN THE HALOGEN ATOMS PRESENT, AND THE AMOUNT OF THE SAID ORGANIC HALIDE BEING SUFFICIENT TO REACT WITH THE FREE AND COMBINED OXYGEN CONTAMINANTS IN SAID VAPORS AND TO MINIMIZE THE OXIDATION OF SAID CARBON CONTACTING SURFACES.
Claim 2
Dependent Claim
100 words
IN A PROCESS FOR HEATING A VAPOROUS OXYGEN-CONTAMINATED INORGANIC HALOGEN-CONTAINING REAGENT TO A TEMPERATURE ABOVE 400*C. IN AN ELECTRICALLY HEATED HEAT EXCHANGER PROVIDED WITH HEATED VAPOR CONTACTING SURFACES OF CARBON, THE STEP COMPRISING ADDING TO SAID VAPORS, BEFORE PASSAGE THROUGH SAID HEATER, AN ORGANIC HALIDE SELECTED FROM THE GROUP CONSISTING OF HALOCARBONS AND HALOHYDROCARBONS, THE HYDROGEN ATOMS PRESENT IN SAID HALOHYDROCARBONS BEING LESS THAN THE HALOGEN ATOMS PRESENT, AND THE AMOUNT OF THE SAID ORGANIC HALIDE BEING SUFFICIENT TO REACT WITH THE FREE AND COMBINED OXYGEN CONTAMINANTS IN SAID VAPORS AND TO MINIMIZE THE OXIDATION OF SAID CARBON CONTACTING SURFACES.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-04-08 | 1960-10-08 | 1961-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-04-08 | 1964-10-08 | 1965-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-04-08 | 1968-10-08 | 1969-04-09 | $7700.00 | Window Closed / Lapsed |