US2867666A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of alpha-methylbenzyl hydroperoxide
Assignee: Monsanto Chemicals Ltd
•
Filing: 1954-09-22
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Granted: 1959-01-06
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Expires: 1974-09-22
Abstract
No abstract record available.
Inventors
- 👤 Floyd B Erickson
- 👤 Robert A Heimsch
- 👤 Bernard S Wildi
- 👤 Jr Tracy M Patrick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:04
CPC Classifications
C; C07; C07C; C07C409/00; C07C409/02; C07C409/04; C07C409/08; C07C407/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
62 words
A PROCESS WHICH COMPRISES OXIDIZING ETHYLBENZENE WITH MOLECULAR OXYGEN IN THE PRESENCE OF A BASIC SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF THE ALKALI METAL CARBONATES AND THE ALKALINE EARTH METAL CARBONATES AND OXIDES, AT A TEMPERATURE WITHIN THE RANGE OF 135* C. TO 160* C. FOR A PERIOD OF TIME LIMITED TO PRODUCE MAXIMUM A-METHYLBENZYL HYDROPEROXIDE CONTENT IN THE REACTION MIXTURE.
Claim 2
Dependent Claim
62 words
A PROCESS WHICH COMPRISES OXIDIZING ETHYLBENZENE WITH MOLECULAR OXYGEN IN THE PRESENCE OF A BASIC SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF THE ALKALI METAL CARBONATES AND THE ALKALINE EARTH METAL CARBONATES AND OXIDES, AT A TEMPERATURE WITHIN THE RANGE OF 135* C. TO 160* C. FOR A PERIOD OF TIME LIMITED TO PRODUCE MAXIMUM A-METHYLBENZYL HYDROPEROXIDE CONTENT IN THE REACTION MIXTURE.
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) | 1962-01-05 | 1962-07-07 | 1963-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-05 | 1966-07-07 | 1967-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-05 | 1970-07-07 | 1971-01-06 | $7700.00 | Window Closed / Lapsed |