US3662006A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydroxylation of aromatic compounds
Assignee: Universal Oil Products Co
•
Filing: 1969-05-12
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Granted: 1972-05-09
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Expires: 1989-05-12
Abstract
Abstract THE NUCLEAR HUDROXYLATIONS OF AROMATIC COMPOUNDS IS EFFECTED BY TREATING AN AROMATIC COMPOUND WITH HYDROGEN PEROXIDE IN THE PRESENCE OF A CATALYST COMPRISING METAL IN THE VALENT STATE OF ZERO AT HYDROXYLATION CONDITIONS.
Inventors
- 👤 Stephen N Massie
- 👤 Robert E Daum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:45
CPC Classifications
C; C07; C07C; C07C37/00; C07C37/60; C07C41/00; C07C41/01; C07C41/18; C07C41/26
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) | 1975-05-09 | 1975-11-08 | 1976-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-09 | 1979-11-08 | 1980-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-09 | 1983-11-08 | 1984-05-09 | $7700.00 | Window Closed / Lapsed |