US3651101A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the manufacture of phenyl esters and phenol from benzene
Assignee: Hoechst AG
•
Filing: 1968-08-09
•
Granted: 1972-03-21
•
Expires: 1988-08-09
Abstract
Abstract THE INVENTION PROVIDES A PROCESS FOR THE CATALYTIC PREPARATION OF PHENYL ESTERS AND, IF DESIRED, PHENOL FROM BENZENE AND SATURATED ALIPHATIC CARBOXYLIC ACIDS IN THE PRESENCE OF A CATALYST COMPRISING A NOBLE METAL OF SUBGROUP VIII OF THE PERIODIC TABLE AND CARBOXYLATES OF METALS OF BROUP IIB, III OR IV OF THE PERIODIC TABLE.
Inventors
- 👤 Manfred Boldt
- 👤 Hans-Jurgen Arpe
- 👤 Lothar Hornig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:47
CPC Classifications
C; C07; C07C; C07C67/00; C07C67/04; C07C67/05; C07C67/055
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1975-03-21 | 1975-09-20 | 1976-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-21 | 1979-09-20 | 1980-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-21 | 1983-09-20 | 1984-03-21 | $7700.00 | Window Closed / Lapsed |