US3260767A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrocarbon dehydrogenation
Assignee: Petro Tex Chemical Corp
•
Filing: 1962-12-04
•
Granted: 1966-07-12
•
Expires: 1982-12-04
Abstract
No abstract record available.
Inventors
- 👤 Bajars Laimonis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:01
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/42; C07C5/54; C07C5/56; Y; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/2101; Y10T74/2102
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
THE METHOD FOR PREPARING ALIPHATIC DIOLEFINS WHICH COMPRISES HEATING IN THE VAPOR PHASE AT A TEMPERATURE IN THE RANGE OF ABOUT 400*C. TO ABOUT 800*C. A MONO OLEFINIC HYDROCARBON CONTAINING 4 TO 6 CARBON ATOMS WITH OXYGEN IN A MOLAR RATIO OF ABOUT ONE-FOURTH TO ABOUT TWO MOLS OF OXYGEN PER MOL OF MONO-OLEFIN, AN IODINE LIBERATING MATERIAL IN AMOUNT GREATER THAN 0.001 MOL TO 0.1 MOL OF IODINE PER MOL OF MONO-OLEFIN, THE AMOUNT OF OXYGEN EMPLOYED BEING GREATER THAN ONE MOL OF OXYGEN PER ATOM OF IODINE, THE PARTIAL PRESSURE OF SAID MONO-OLEFIN BEING LESS THAN ABOUT 10 INCHES MERCURY, IN THE PRESENCE OF A CATALYST CONSISTING ESSENTIALLY OF PALLADIUM OXIDE.
Claim 2
Independent Claim
113 words
THE METHOD FOR PREPARING ALIPHATIC DIOLEFINS WHICH COMPRISES HEATING IN THE VAPOR PHASE AT A TEMPERATURE IN THE RANGE OF ABOUT 400*C. TO ABOUT 800*C. A MONO OLEFINIC HYDROCARBON CONTAINING 4 TO 6 CARBON ATOMS WITH OXYGEN IN A MOLAR RATIO OF ABOUT ONE-FOURTH TO ABOUT TWO MOLS OF OXYGEN PER MOL OF MONO-OLEFIN, AN IODINE LIBERATING MATERIAL IN AMOUNT GREATER THAN 0.001 MOL TO 0.1 MOL OF IODINE PER MOL OF MONO-OLEFIN, THE AMOUNT OF OXYGEN EMPLOYED BEING GREATER THAN ONE MOL OF OXYGEN PER ATOM OF IODINE, THE PARTIAL PRESSURE OF SAID MONO-OLEFIN BEING LESS THAN ABOUT 10 INCHES MERCURY, IN THE PRESENCE OF A CATALYST CONSISTING ESSENTIALLY OF PALLADIUM OXIDE.
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) | 1969-07-11 | 1970-01-10 | 1970-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-11 | 1974-01-10 | 1974-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-11 | 1978-01-10 | 1978-07-12 | $7700.00 | Window Closed / Lapsed |