US2613227A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cumene oxidation
Assignee: Honeywell International Inc
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Filing: 1950-05-23
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Granted: 1952-10-07
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Expires: 1970-05-23
Abstract
No abstract record available.
Inventors
- 👤 George G Joris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:48
CPC Classifications
C; C07; C07C; C07C409/00; C07C409/02; C07C409/04; C07C409/08; C07C409/10; C07C407/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
28 words
THE IMPROVEMENT IN PROCESSES FOR OXIDIZING CUMENE IN LIQUID PHASE BY ELEMENTAL OXYGEN TO CUMENE HYDROPEROXIDE WHICH COMPRISES CONTACTING SAID CUMENE WITH SOLID CALCIUM CARBONATE DURING SAID OXIDATION.
Claim 2
Dependent Claim
28 words
THE IMPROVEMENT IN PROCESSES FOR OXIDIZING CUMENE IN LIQUID PHASE BY ELEMENTAL OXYGEN TO CUMENE HYDROPEROXIDE WHICH COMPRISES CONTACTING SAID CUMENE WITH SOLID CALCIUM CARBONATE DURING SAID OXIDATION.
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) | 1955-10-07 | 1956-04-07 | 1956-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-10-07 | 1960-04-07 | 1960-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-10-07 | 1964-04-07 | 1964-10-07 | $7700.00 | Window Closed / Lapsed |