Patent US3268612A successfully refreshed from Google Patents.
US3268612A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrocarbon dehydrogenation process
Assignee: Petro Tex Chemical Corp
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Filing: 1965-06-11
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Granted: 1966-08-23
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Expires: 1985-06-11
Abstract
No abstract record available.
Inventors
- 👤 Bajars Laimonis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 07:11
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/42; C07C5/54; C07C5/56
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
138 words
THE METHOD FOR THE PRODUCTION OF UNSATURATED ALIPHATIC HYDROCARBONS OF 4 TO 6 CARBON ATOMS WHICH COMPRISES HEATING IN THE VAPOR PHASE AT A TEMPERATURE OF AT LEAST 450* C. THE CORRESPONDING ALIPHATIC HYDROCARBON OF 4 TO 6 CARBON ATOMS WITH OXYGEN IN A MOLAR RATIOR OF ABOUT 0.4 TO 2 MOLS OF OXYGEN PER MOL OF SAID ALIPHATIC HYDROCARBON, CHLORINE IN A MOLAR RATIO OF FROM GREATER THAN ABOUT 0.001 MOL TO 0.2 MOL OF CHLORINE PER MOL OF SAID ALIPHATIC HYDROCARBONS, THE PARTIAL PRESSURE OF SAID ALIPHATIC HYDROCARBONS BEING EQUIVALENT TO LESS THAN ABOUT ONE-FIFTH ATMOSPHERE AT ONE ATMOSPHERE TOTAL PRESSURE, WITH A CATALYST CONSISTING ESSENTIALLY OF PLATINUM METAL, PALLADIUM METAL, PLATINUM OXIDE, PALLADIUM OXIDE OR MIXTURES THEREOF, THE RATIO OF THE MOLS OF SAID OXYGEN TO THE MOL OF SAID CHLORINE BEING AT LEAST THREE.
Claim 2
Independent Claim
138 words
THE METHOD FOR THE PRODUCTION OF UNSATURATED ALIPHATIC HYDROCARBONS OF 4 TO 6 CARBON ATOMS WHICH COMPRISES HEATING IN THE VAPOR PHASE AT A TEMPERATURE OF AT LEAST 450* C. THE CORRESPONDING ALIPHATIC HYDROCARBON OF 4 TO 6 CARBON ATOMS WITH OXYGEN IN A MOLAR RATIOR OF ABOUT 0.4 TO 2 MOLS OF OXYGEN PER MOL OF SAID ALIPHATIC HYDROCARBON, CHLORINE IN A MOLAR RATIO OF FROM GREATER THAN ABOUT 0.001 MOL TO 0.2 MOL OF CHLORINE PER MOL OF SAID ALIPHATIC HYDROCARBONS, THE PARTIAL PRESSURE OF SAID ALIPHATIC HYDROCARBONS BEING EQUIVALENT TO LESS THAN ABOUT ONE-FIFTH ATMOSPHERE AT ONE ATMOSPHERE TOTAL PRESSURE, WITH A CATALYST CONSISTING ESSENTIALLY OF PLATINUM METAL, PALLADIUM METAL, PLATINUM OXIDE, PALLADIUM OXIDE OR MIXTURES THEREOF, THE RATIO OF THE MOLS OF SAID OXYGEN TO THE MOL OF SAID CHLORINE BEING AT LEAST THREE.
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) | 1969-08-22 | 1970-02-21 | 1970-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-22 | 1974-02-21 | 1974-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-22 | 1978-02-21 | 1978-08-23 | $7700.00 | Window Closed / Lapsed |