US2808422A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Partial oxidation of hydrocarbons
Assignee: Sunoco Inc
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Filing: 1953-07-31
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Granted: 1957-10-01
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Expires: 1973-07-31
Abstract
No abstract record available.
Inventors
- 👤 Jack F Ritter
- 👤 Frank R Shuman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 01:52
CPC Classifications
C; C07; C07B; C07B35/00; C07B35/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
METHOD FOR PARTIALLY OXIDIZING HYDROCARBON MATERIALS WHICH COMPRISES: CONTACTING SUCH MATERIAL IN LIQUID PHASE WITH A FREE-OXYGEN CONTAINING GAS UNDER PARTIAL OXIDATION CONDITIONS IN THE PRESENCE OF OZONE UNTIL THE SAPONIFICATION NUMBER OF THE PARTIALLY OXIDIZED HYDROCARBON MATERIALS IS AT LEAST ABOUT 10 MG. OF KOH PER GRAM; AND THEN CONTINUING THE OXIDATION BY CONTACTING THE LIQUID MATERIALS WITH A FREE-OXYGEN CONTAINING GAS UNDER PARTIAL OXIDATION CONDITIONS IN THE ABSENCE OF OZONE.
Claim 2
Dependent Claim
72 words
METHOD FOR PARTIALLY OXIDIZING HYDROCARBON MATERIALS WHICH COMPRISES: CONTACTING SUCH MATERIAL IN LIQUID PHASE WITH A FREE-OXYGEN CONTAINING GAS UNDER PARTIAL OXIDATION CONDITIONS IN THE PRESENCE OF OZONE UNTIL THE SAPONIFICATION NUMBER OF THE PARTIALLY OXIDIZED HYDROCARBON MATERIALS IS AT LEAST ABOUT 10 MG. OF KOH PER GRAM; AND THEN CONTINUING THE OXIDATION BY CONTACTING THE LIQUID MATERIALS WITH A FREE-OXYGEN CONTAINING GAS UNDER PARTIAL OXIDATION CONDITIONS IN THE ABSENCE OF OZONE.
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) | 1960-09-30 | 1961-04-01 | 1961-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-30 | 1965-04-01 | 1965-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-30 | 1969-04-01 | 1969-10-01 | $7700.00 | Window Closed / Lapsed |