US3594445A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Isomerization of paraffinic hydrocarbons employing hydrogen with an olefin and/or an alkyl fluorosulfonate
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1969-10-30
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Granted: 1971-07-20
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Expires: 1989-10-30
Abstract
Abstract IN THE ISOMERIZATION OF NORMAL AND NAPHTHENIC PARAFFINS WITH A CATALYST COMPRISED OF (1) A GROUP V METAL FLUORIDE SUCH AS ANTIMONY PENTAFLUORIDE AND (2) FLUOROSULFONIC ACID, THE IMPROVEMENT WHEREIN THE FORMATION OF UNDESIRABLE PRODUCTS BY DISPROPORTIONATION IS SUPPRESSED BY EMPLOYING HYDROGEN GAS WITH AN OLEFIN AND/OR AN ALKYL FLUOROSULFONATE SUCH AS ETHYL FLUOROSULFONATE.
Inventors
- 👤 Paul Thomas Parker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:48
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/22; C07C5/27; C07C5/2702; C07C5/271; C07C5/2718; C07C5/2721
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-07-19 | 1975-01-18 | 1975-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-19 | 1979-01-18 | 1979-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-19 | 1983-01-18 | 1983-07-20 | $7700.00 | Window Closed / Lapsed |