US3190939A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Paraffin isomerization process using hydrogen mordenite catalyst
Assignee: Shell USA Inc
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Filing: 1963-08-19
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Granted: 1965-06-22
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Expires: 1983-08-19
Abstract
No abstract record available.
Inventors
- 👤 Hans A Benesi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:33
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/22; C07C5/27; C07C5/2767; C07C5/277; C07C5/2775; B; B01; B01J; B01J29/00; B01J29/04; B01J29/06; B01J29/18; C07C5/2791
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
41 words
A PROCESS FOR ISOMERIZING A NORMAL PARAFFIN HAVING FROM 4 THROUGH 6 CARBON ATOMS PER MOLECULE WHICH COMPRISES CONTACTING SAID NORMAL PARAFFIN AT A TEMPERATURE IN THE RANGE FROM ABOUT 550* TO 625*F. WITH HYDROGEN MORDENITE IN THE PRESENCE OF HYDROGEN.
Claim 2
Dependent Claim
41 words
A PROCESS FOR ISOMERIZING A NORMAL PARAFFIN HAVING FROM 4 THROUGH 6 CARBON ATOMS PER MOLECULE WHICH COMPRISES CONTACTING SAID NORMAL PARAFFIN AT A TEMPERATURE IN THE RANGE FROM ABOUT 550* TO 625*F. WITH HYDROGEN MORDENITE IN THE PRESENCE OF HYDROGEN.
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) | 1968-06-21 | 1968-12-21 | 1969-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-21 | 1972-12-21 | 1973-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-21 | 1976-12-21 | 1977-06-22 | $7700.00 | Window Closed / Lapsed |