US3236765A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Denitrogenation of hydrocarbon mixtures
Assignee: Standard Oil Co
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Filing: 1962-07-31
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Granted: 1966-02-22
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Expires: 1982-07-31
Abstract
No abstract record available.
Inventors
- 👤 William F Erbelding
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:34
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/16; B01J23/32; B01J23/36; C; C10; C10G; C10G45/00; C10G45/02; C10G45/04; C10G47/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
48 words
A PROCESS FOR THE DENITROGENATION OF NITROGEN-CONTAMINIATED HYDROCARBON MIXTURES WHICH PROCESS COMPRISES CONTACTING SAID HYDROCARBON MIXTURES UNDER DENITROGENATION CONDITIONS IN THE PRESENCE OF A HYDROGEN-AFFORDING GAS AND A CATALYST COMPRISING A RHENIUM DENITROGENATION COMPONENT ON A POROUS SOLID ACIDIC CRACKING CATALYST BASE TO PRODUCE A SUBSTANTIALLY NITROGEN-FREE PRODUCT.
Claim 2
Dependent Claim
48 words
A PROCESS FOR THE DENITROGENATION OF NITROGEN-CONTAMINIATED HYDROCARBON MIXTURES WHICH PROCESS COMPRISES CONTACTING SAID HYDROCARBON MIXTURES UNDER DENITROGENATION CONDITIONS IN THE PRESENCE OF A HYDROGEN-AFFORDING GAS AND A CATALYST COMPRISING A RHENIUM DENITROGENATION COMPONENT ON A POROUS SOLID ACIDIC CRACKING CATALYST BASE TO PRODUCE A SUBSTANTIALLY NITROGEN-FREE PRODUCT.
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) | 1969-02-21 | 1969-08-23 | 1970-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-21 | 1973-08-23 | 1974-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-21 | 1977-08-23 | 1978-02-22 | $7700.00 | Window Closed / Lapsed |