US3207807A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dehydrogenation process
Assignee: Petro Tex Chemical Corp
•
Filing: 1962-05-28
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Granted: 1965-09-21
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Expires: 1982-05-28
Abstract
No abstract record available.
Inventors
- 👤 Bajars Laimonis
- 👤 Russell M Mantell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 00:47
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/42; C07C5/54; C07C5/56
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
THE METHOD FOR DEHYDROGENATING ALIPHATIC HYDROCARBONS WHICH COMPRISES HEATING IN THE VAPOR PHASE AT A TEMPERATURE GREATER THAN 400*C. AN, ALIPHATIC HYDROCARBON WITH OXYGEN IN A MOLAR RATIO OF GREATER THAN ONEFOURTH MOL OF OXYGEN PER MOL OF SAID HYDROCARBON, AT LEAST ABOUT 0.0005 MOL OF BROMINE PER MOL OF SAID HYDROCARBON, THE INITIAL PARTIAL PRESSURE OF SAID HYDROCARBON BEING EQUIVALENT TO LESS THAN ABOUT ONE-THIRD ATMOSPHERE AT ONE ATMOSPHERE TOTAL PRESSURE, WITH AN ESSENTIALLY SOLID CATALYST COMPRISING A CATALYTIC SURFACE HAVING AS ITS MAIN ACTIVE CONSTITUENT A MEMBER SELECTED FROM THE GROUP CONSISTING OF METALS, OXIDES, SALTS, AND HYDROXIDES OF ZN, CD, SB, BI, CU, SN, AND MIXTURES THEREOF, THE RATIO OF THE MOLS OF SAID OXYGEN TO THE ATOMS OF SAID BROMINE BEING GREATER THAN ONE.
Claim 2
Independent Claim
128 words
THE METHOD FOR DEHYDROGENATING ALIPHATIC HYDROCARBONS WHICH COMPRISES HEATING IN THE VAPOR PHASE AT A TEMPERATURE GREATER THAN 400*C. AN, ALIPHATIC HYDROCARBON WITH OXYGEN IN A MOLAR RATIO OF GREATER THAN ONEFOURTH MOL OF OXYGEN PER MOL OF SAID HYDROCARBON, AT LEAST ABOUT 0.0005 MOL OF BROMINE PER MOL OF SAID HYDROCARBON, THE INITIAL PARTIAL PRESSURE OF SAID HYDROCARBON BEING EQUIVALENT TO LESS THAN ABOUT ONE-THIRD ATMOSPHERE AT ONE ATMOSPHERE TOTAL PRESSURE, WITH AN ESSENTIALLY SOLID CATALYST COMPRISING A CATALYTIC SURFACE HAVING AS ITS MAIN ACTIVE CONSTITUENT A MEMBER SELECTED FROM THE GROUP CONSISTING OF METALS, OXIDES, SALTS, AND HYDROXIDES OF ZN, CD, SB, BI, CU, SN, AND MIXTURES THEREOF, THE RATIO OF THE MOLS OF SAID OXYGEN TO THE ATOMS OF SAID BROMINE BEING GREATER THAN ONE.
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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) | 1968-09-20 | 1969-03-22 | 1969-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-20 | 1973-03-22 | 1973-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-20 | 1977-03-22 | 1977-09-21 | $7700.00 | Window Closed / Lapsed |