US2573751A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oxidation of petroleum hydrocarbons
Assignee: Mathieson Chemical Corp
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Filing: 1947-08-28
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Granted: 1951-11-06
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Expires: 1967-08-28
Abstract
No abstract record available.
Inventors
- 👤 Eric R Woodward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:42
CPC Classifications
C; C07; C07C; C07C51/00; C07C51/16; C07C51/21; C07C51/215
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
A PROCESS FOR THE OXIDATION OF PETROLEUM HYDROCARBONS WHICH COMPRISES BLOWING A HYDROCARBON CONTAINING NOT LESS THAN EIGHT CARBON ATOMS PER MOLECULE, WHILE AT SUBSTANTIALLY ATMOSPHERIC PRESSURE AT AN ELEVATED TEMPERATURE NOT EXCEEDING 100* C. WITH A MIXTURE OF CHLORINE DIOXIDE AND AIR IN WHICH THE PARTIAL PRESSURE OF THE CHLORINE DIOXIDE IS WITHIN THE RANGE OF 5 TO 30 MM.
Claim 2
Dependent Claim
61 words
A PROCESS FOR THE OXIDATION OF PETROLEUM HYDROCARBONS WHICH COMPRISES BLOWING A HYDROCARBON CONTAINING NOT LESS THAN EIGHT CARBON ATOMS PER MOLECULE, WHILE AT SUBSTANTIALLY ATMOSPHERIC PRESSURE AT AN ELEVATED TEMPERATURE NOT EXCEEDING 100* C. WITH A MIXTURE OF CHLORINE DIOXIDE AND AIR IN WHICH THE PARTIAL PRESSURE OF THE CHLORINE DIOXIDE IS WITHIN THE RANGE OF 5 TO 30 MM.
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) | 1954-11-05 | 1955-05-07 | 1955-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-11-05 | 1959-05-07 | 1959-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-11-05 | 1963-05-07 | 1963-11-06 | $7700.00 | Window Closed / Lapsed |