US3309309A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Denitrification of hydrocarbons
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1965-05-27
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Granted: 1967-03-14
•
Expires: 1985-05-27
Abstract
No abstract record available.
Inventors
- 👤 Hess Fritz Karl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:52
CPC Classifications
C; C10; C10G; C10G21/00; C10G21/06; C10G21/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
32 words
A PROCESS FOR TREATING HYDROCARBON FEED WHICH COMPRISES CONTACTING SAID FEED WITH A SOLUTION COMPRISING AN ORGANIC SULFOXIDE AND A NITROPHENOL, AND RECOVERING A HYDROCARBON PHASE HAING A SUBSTANTIALLY REDUCED NITROGEN CONTENT.
Claim 2
Dependent Claim
32 words
A PROCESS FOR TREATING HYDROCARBON FEED WHICH COMPRISES CONTACTING SAID FEED WITH A SOLUTION COMPRISING AN ORGANIC SULFOXIDE AND A NITROPHENOL, AND RECOVERING A HYDROCARBON PHASE HAING A SUBSTANTIALLY REDUCED NITROGEN CONTENT.
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) | 1970-03-13 | 1970-09-12 | 1971-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-13 | 1974-09-12 | 1975-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-13 | 1978-09-12 | 1979-03-14 | $7700.00 | Window Closed / Lapsed |