US2513103A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Isomerization of hydrocarbons
Assignee: MW Kellogg Co
•
Filing: 1945-08-08
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Granted: 1950-06-27
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Expires: 1965-08-08
Abstract
No abstract record available.
Inventors
- 👤 Herbert J Passino
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 00:52
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/22; C07C5/27; C07C5/2767; C07C5/277; C07C5/2778; C07C5/2786; C07C5/2206; C07C5/2226; C07C5/2246; C07C2527/00; C07C2527/06; C07C2527/08; C07C2527/12; C07C2527/1206; C07C2527/1213
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
THE METHOD FOR ISOMERIZING ALIPHATIC PARAFFIN HYDROCARBONS HAVING AT LEAST FOUR CARBON ATOMS PER MOLECULE WHICH COMPRISES CONTACTING SAID HYDROCARBONS SIMULTANEOUSLY WITH HYDROGEN FLUORIDE AND BORON TRIFLUORIDE IN THE PRESENCE OF AN ADDED LOW BOILING ISOPARAFFIN AS A CRACKING INHIBITOR, THE HYDROGEN FLUORIDE BEING PRESENT IN AN AMOUNT EQUIVALENT TO AT LEAST 10% BY WEIGHT OF THE HYDROCARBON REACTANTS AND THE BORON TRIFLUORIDE BEING PRESENT IN AN AMOUNT EQUIVALENT TO AT LEAST 0.5% BY WEIGHT OF THE HYDROCARBON REACTANTS, AND MAINTAINING SAID CONTACT FOR A TIME NOT EXCEEDING ABOUT THREE HOURS AND A TEMPERATURE SUFFICIENT TO EFFECT THE DESIRED DEGREE OF ISOMERIZATION.
Claim 2
Independent Claim
102 words
THE METHOD FOR ISOMERIZING ALIPHATIC PARAFFIN HYDROCARBONS HAVING AT LEAST FOUR CARBON ATOMS PER MOLECULE WHICH COMPRISES CONTACTING SAID HYDROCARBONS SIMULTANEOUSLY WITH HYDROGEN FLUORIDE AND BORON TRIFLUORIDE IN THE PRESENCE OF AN ADDED LOW BOILING ISOPARAFFIN AS A CRACKING INHIBITOR, THE HYDROGEN FLUORIDE BEING PRESENT IN AN AMOUNT EQUIVALENT TO AT LEAST 10% BY WEIGHT OF THE HYDROCARBON REACTANTS AND THE BORON TRIFLUORIDE BEING PRESENT IN AN AMOUNT EQUIVALENT TO AT LEAST 0.5% BY WEIGHT OF THE HYDROCARBON REACTANTS, AND MAINTAINING SAID CONTACT FOR A TIME NOT EXCEEDING ABOUT THREE HOURS AND A TEMPERATURE SUFFICIENT TO EFFECT THE DESIRED DEGREE OF ISOMERIZATION.
References Cited (Backward Citations)
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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) | 1953-06-26 | 1953-12-26 | 1954-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-06-26 | 1957-12-26 | 1958-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-06-26 | 1961-12-26 | 1962-06-27 | $7700.00 | Window Closed / Lapsed |