US3105812A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of removing nitrogen compounds by oxidation
Assignee: Gulf Research and Development Co
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Filing: 1961-12-27
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Granted: 1963-10-01
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Expires: 1981-12-27
Abstract
No abstract record available.
Inventors
- 👤 Richard A Flinn
- 👤 Bernard A Kerns
- 👤 Olaf A Larson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:53
CPC Classifications
C; C10; C10G; C10G27/00; C10G27/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
53 words
A PROCESS FOR REDUCING THE NITROGEN CONTENT OF A NITROGEN-CONTAINING PETROLEUM FRACTION WHICH COMPRISES CONTACTING SAID NITROGEN-CONTAINING PETROLEUM FRACTION WITH AN OXYGEN-CONTAINING GAS IN THE PRESENCE OF A SOLID CATALYST COMPRISING AN OXIDE OF PHOSPHORUS UNDER MILD OXIDATION CONDITIONS INCLUDING A TEMPERATURE BETWEEN 100* AND 650*F. TO MINIMIZE THE PRODUCTION OF OXYGENATED COMPOUNDS.
Claim 2
Dependent Claim
53 words
A PROCESS FOR REDUCING THE NITROGEN CONTENT OF A NITROGEN-CONTAINING PETROLEUM FRACTION WHICH COMPRISES CONTACTING SAID NITROGEN-CONTAINING PETROLEUM FRACTION WITH AN OXYGEN-CONTAINING GAS IN THE PRESENCE OF A SOLID CATALYST COMPRISING AN OXIDE OF PHOSPHORUS UNDER MILD OXIDATION CONDITIONS INCLUDING A TEMPERATURE BETWEEN 100* AND 650*F. TO MINIMIZE THE PRODUCTION OF OXYGENATED COMPOUNDS.
References Cited (Backward Citations)
US2191043A
Cited
US2773921A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-09-30 | 1967-04-01 | 1967-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-30 | 1971-04-01 | 1971-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-30 | 1975-04-01 | 1975-10-01 | $7700.00 | Window Closed / Lapsed |