Patent US2859248A successfully refreshed from Google Patents.
US2859248A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oxidation of organic sulfides
Assignee: Phillips Petroleum Co
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Filing: 1956-07-11
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Granted: 1958-11-04
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Expires: 1976-07-11
Abstract
No abstract record available.
Inventors
- 👤 Rector P Louthan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:04
CPC Classifications
C; C07; C07C; C07C317/00; C07B; C07B45/00; C07B45/04; C07C323/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
137 words
A METHOD FOR THE PRODUCTION OF AN ORGANIC SULFOXIDE WHICH COMPRISES THE OXIDATION WITH AN ELEMENTAL OXYGEN-CONTAINING GAS OF AN ORGANIC SULFIDE HAVING THE FORMULA RSR WHEREIN EACH R CONTAINS NOT MORE THAN 20 CARBON ATOMS AND THE TOTAL CARBON ATOMS DOES NOT EXCEED 30 CARBON ATOMS AND WHEREIN EACH R IS SELECTED FROM THE GROUP CONSISTING OF AN ALKYL, CYCLOALKYL, ARYL, ARALKYL, ALKARYL RADICAL, AND ONE OF SAID RADICALS CONTAINING A HYDROXY GROUP AS A SUBSTITUENT, IN THE PRESENCE OF A CATALYST SYSTEM COMPRISING A NITROGEN COMPOUND CONSISTING OF AT LEAST ONE OF THE GROUP CONSISTING OF HNO3 AND NO2 AND A HALOGEN COMPOUND CONSISTING OF AT LEAST ONE OF THE GROUP CONSISTING OF CUCL2, CUBR, CUBR2, AND HBR, WITH THE PROVISO THAT, WHERE ONE OF THE R''S CONTAINS A HYDROXY GROUP, HBR IS NOT SELECTED.
Claim 2
Independent Claim
137 words
A METHOD FOR THE PRODUCTION OF AN ORGANIC SULFOXIDE WHICH COMPRISES THE OXIDATION WITH AN ELEMENTAL OXYGEN-CONTAINING GAS OF AN ORGANIC SULFIDE HAVING THE FORMULA RSR WHEREIN EACH R CONTAINS NOT MORE THAN 20 CARBON ATOMS AND THE TOTAL CARBON ATOMS DOES NOT EXCEED 30 CARBON ATOMS AND WHEREIN EACH R IS SELECTED FROM THE GROUP CONSISTING OF AN ALKYL, CYCLOALKYL, ARYL, ARALKYL, ALKARYL RADICAL, AND ONE OF SAID RADICALS CONTAINING A HYDROXY GROUP AS A SUBSTITUENT, IN THE PRESENCE OF A CATALYST SYSTEM COMPRISING A NITROGEN COMPOUND CONSISTING OF AT LEAST ONE OF THE GROUP CONSISTING OF HNO3 AND NO2 AND A HALOGEN COMPOUND CONSISTING OF AT LEAST ONE OF THE GROUP CONSISTING OF CUCL2, CUBR, CUBR2, AND HBR, WITH THE PROVISO THAT, WHERE ONE OF THE R''S CONTAINS A HYDROXY GROUP, HBR IS NOT SELECTED.
References Cited (Backward Citations)
US2539808A
Cited
US2702824A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-11-03 | 1962-05-05 | 1962-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-03 | 1966-05-05 | 1966-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-03 | 1970-05-05 | 1970-11-04 | $7700.00 | Window Closed / Lapsed |