US2590124A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Partial oxidation of hydrocarbons using gaseous sulfur trioxide
Assignee: CLARK BROS Co Inc
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Filing: 1946-06-08
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Granted: 1952-03-25
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Expires: 1966-06-08
Abstract
No abstract record available.
Inventors
- 👤 William H Reeder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:18
CPC Classifications
C; C07; C07C; C07C45/00; C07C45/27; C07C45/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
53 words
THE METHOD OF OXIDIZING SATURATED ALIPHATIC HYDROCARBON GASES TO FORM PARTIALLY OXYGENATED COMPOUNDS CONTAINING RESIDUAL HYDROGEN INCLUDING COMPOUNDS CONTAINING THE CARBONYL GROUP WHICH COMPRISES ADMIXING SUCH GASES WITH SULFUR TRIOXIDE IN VAPOR FORM IN THE ABSENCE OF FREE OXYGEN AND CONTACTING THE MIXED GASES WITH A CONTACT MASS COMPRISING AN ADSORPTIVE CATALYTIC MA-
Claim 2
Independent Claim
53 words
THE METHOD OF OXIDIZING SATURATED ALIPHATIC HYDROCARBON GASES TO FORM PARTIALLY OXYGENATED COMPOUNDS CONTAINING RESIDUAL HYDROGEN INCLUDING COMPOUNDS CONTAINING THE CARBONYL GROUP WHICH COMPRISES ADMIXING SUCH GASES WITH SULFUR TRIOXIDE IN VAPOR FORM IN THE ABSENCE OF FREE OXYGEN AND CONTACTING THE MIXED GASES WITH A CONTACT MASS COMPRISING AN ADSORPTIVE CATALYTIC MA-
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) | 1955-03-25 | 1955-09-24 | 1956-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-03-25 | 1959-09-24 | 1960-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-03-25 | 1963-09-24 | 1964-03-25 | $7700.00 | Window Closed / Lapsed |