US3600447A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of hydroxylated aromatic compounds
Assignee: Universal Oil Products Co
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Filing: 1965-12-20
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Granted: 1971-08-17
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Expires: 1985-12-20
Abstract
Abstract PREPARATION OF A HYDROXYLATED AROMATIC COMPOUND BY TREATING A T-ALKYL SUBSTITUTED AROMATIC COMPOUND WITH H2O2 IN THE PRESENCE OF A FRIEDEL-CRAFTS CATALYST AT A TEMPERATURE OF -10*C. TO 100*C.
Inventors
- 👤 Jerome A Vesely
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:50
CPC Classifications
C; C07; C07C; C07C37/00; C07C37/60; C07C37/50
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-08-16 | 1975-02-15 | 1975-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-16 | 1979-02-15 | 1979-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-16 | 1983-02-15 | 1983-08-17 | $7700.00 | Window Closed / Lapsed |