Patent US3270080A successfully refreshed from Google Patents.
US3270080A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of unsaturated compounds
Assignee: Petro Tex Chemical Corp
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Filing: 1964-06-22
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Granted: 1966-08-30
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Expires: 1984-06-22
Abstract
No abstract record available.
Inventors
- 👤 Harold F Christmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:04
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/42; C07C5/48; B; B01; B01J; B01J27/00; B01J27/14; B01J27/185; B01J27/1853
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
A PROCESS FOR THE DEHYDROGENATION OF ORGANIC COMPOUND HAVING AT LEAST FOUR CARBON ATOMS WHICH COMPRISES CONTACTING IN THE VAPOR PHASE AT A TEMPERATURE OF GREATER THAN 250*C. A MIXTURE OF THE SAID ORGANIC COMPOUND TO BE DEHYDROGENATED AND FROM 0.2 TO 2.5 MOLS OF OXYGEN PER MOLE OF THE SID ORGANIC COMPOUND WITH A CATALYST FOR THE DEHYDROGENATION COMPRISING IRON, PHOSPHORUS AND A METAL SELECTED FROM THE GROUP CONSISTING OF MAGNESIUM, ZINC, COBALT, NICKEL AND MIXTURES THEREOF WHEREIN THE PHOSPHORUS IS PRESENT IN AN AMOUNT OF FROM .002 TO 0.25 ATOM OF PHOSPHORUS PER ATOM OF IRON AND THE ATOMS OF MAGNESIUM, ZINC, COBALT AND NICKEL ARE PRESENT IN A TOTAL AMOUNT OF FROM .05 TO 2 ATOMS PER ATOM OF IRON.
Claim 2
Dependent Claim
123 words
A PROCESS FOR THE DEHYDROGENATION OF ORGANIC COMPOUND HAVING AT LEAST FOUR CARBON ATOMS WHICH COMPRISES CONTACTING IN THE VAPOR PHASE AT A TEMPERATURE OF GREATER THAN 250*C. A MIXTURE OF THE SAID ORGANIC COMPOUND TO BE DEHYDROGENATED AND FROM 0.2 TO 2.5 MOLS OF OXYGEN PER MOLE OF THE SID ORGANIC COMPOUND WITH A CATALYST FOR THE DEHYDROGENATION COMPRISING IRON, PHOSPHORUS AND A METAL SELECTED FROM THE GROUP CONSISTING OF MAGNESIUM, ZINC, COBALT, NICKEL AND MIXTURES THEREOF WHEREIN THE PHOSPHORUS IS PRESENT IN AN AMOUNT OF FROM .002 TO 0.25 ATOM OF PHOSPHORUS PER ATOM OF IRON AND THE ATOMS OF MAGNESIUM, ZINC, COBALT AND NICKEL ARE PRESENT IN A TOTAL AMOUNT OF FROM .05 TO 2 ATOMS PER ATOM OF IRON.
References Cited (Backward Citations)
US3207806A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-29 | 1970-02-28 | 1970-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-29 | 1974-02-28 | 1974-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-29 | 1978-02-28 | 1978-08-30 | $7700.00 | Window Closed / Lapsed |