US2644840A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oxidation of hydrocarbons
Assignee: Monsanto Chemicals Ltd
•
Filing: 1949-07-07
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Granted: 1953-07-07
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Expires: 1969-07-07
Abstract
No abstract record available.
Inventors
- 👤 Roebuck David Samuel Petrie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:27
CPC Classifications
C; C07; C07C; C07C63/00; C07C63/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
IN THE PROCESS FOR THE PRODUCTION OF OXYGENATED AROMATIC COMPOUNDS BY THE OXIDATION OF ALKYL AROMATIC HYDROCARBONS IN THE LIQUID PHASE BY MEANS OF GASEOUS OXYGEN AND IN WHICH PROCESS THE SAID OXIDATION IS FIRST INITIATED BY PEROXIDE INITIATORS AND THEREAFTER THE SAID OXIDATION IS INHIBITED BY OXIDATION INHIBITING BODIES SIMULTANEOUSLY FORMED THEREIN, THE IMPROVEMENT WHICH COMPRISES ADDING TO SAID LIQUID PHASE A SOLID, INORGANIC ADSORBENT IN SUCH AN AMOUNT AS TO ADSORB SAID OXIDATION INHIBITING BODIES BUT INSUFFICIENT TO ADSORB SAID OXIDATION PROMOTING BODIES.
Claim 2
Dependent Claim
85 words
IN THE PROCESS FOR THE PRODUCTION OF OXYGENATED AROMATIC COMPOUNDS BY THE OXIDATION OF ALKYL AROMATIC HYDROCARBONS IN THE LIQUID PHASE BY MEANS OF GASEOUS OXYGEN AND IN WHICH PROCESS THE SAID OXIDATION IS FIRST INITIATED BY PEROXIDE INITIATORS AND THEREAFTER THE SAID OXIDATION IS INHIBITED BY OXIDATION INHIBITING BODIES SIMULTANEOUSLY FORMED THEREIN, THE IMPROVEMENT WHICH COMPRISES ADDING TO SAID LIQUID PHASE A SOLID, INORGANIC ADSORBENT IN SUCH AN AMOUNT AS TO ADSORB SAID OXIDATION INHIBITING BODIES BUT INSUFFICIENT TO ADSORB SAID OXIDATION PROMOTING BODIES.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-07-06 | 1957-01-05 | 1957-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-06 | 1961-01-05 | 1961-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-06 | 1965-01-05 | 1965-07-07 | $7700.00 | Window Closed / Lapsed |