US2773906A
Expired / Lapsed
US
⏱️ 0.0 years remaining
alpha, alpha-dialkyl-ar-phenylbenzyl hydroperoxides
Assignee: Monsanto Chemicals Ltd
•
Filing: 1953-05-06
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Granted: 1956-12-11
•
Expires: 1973-05-06
Abstract
No abstract record available.
Inventors
- 👤 William S Emerson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:03
CPC Classifications
C; C07; C07C; C07C409/00; C07C409/02; C07C409/04; C07C409/08; C07C407/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
34 words
THE METHOD OF PREPARING AN A,A-DIMETHYL-AR-PHENYLBENZYL HYDROPEROXIDE WHICH COMPRISES PASSING OXYGEN INTO A MIXTURE CONSISTING OF AN ISOPROPYLBIPHENYL, A PEROXIDE COMPOUND, AND SODIUM BICARBONATE AT A TEMPPERATURE OF FROM 140* C. TO 190* C.
Claim 2
Independent Claim
34 words
THE METHOD OF PREPARING AN A,A-DIMETHYL-AR-PHENYLBENZYL HYDROPEROXIDE WHICH COMPRISES PASSING OXYGEN INTO A MIXTURE CONSISTING OF AN ISOPROPYLBIPHENYL, A PEROXIDE COMPOUND, AND SODIUM BICARBONATE AT A TEMPPERATURE OF FROM 140* C. TO 190* C.
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) | 1959-12-11 | 1960-06-11 | 1960-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-11 | 1964-06-11 | 1964-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-11 | 1968-06-11 | 1968-12-11 | $7700.00 | Window Closed / Lapsed |