US2829166A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrogenation of phenol
Assignee: Honeywell International Inc
•
Filing: 1956-04-23
•
Granted: 1958-04-01
•
Expires: 1976-04-23
Abstract
No abstract record available.
Inventors
- 👤 George G Joris
- 👤 Jr John Vitrone
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 03:03
CPC Classifications
C; C07; C07C; C07C45/00; C07C45/006
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
40 words
THE PROCESS OF PRODUCING CYCLOHEXANONE COMPRISING HYDROGENATING PHENOL AT TEMPERATURE WITHIN THE RANGE OF 100*C. TO 150*C. IN THE PRESENCE OF CATALYST CONTAINING PALLADIUM AS THE ACTIVE INGREDIENT AND UNDER PRESSURE NOT IN EXCESS OF ABOUT 300 LBS./SQ. INCH GAUGE.
Claim 2
Dependent Claim
40 words
THE PROCESS OF PRODUCING CYCLOHEXANONE COMPRISING HYDROGENATING PHENOL AT TEMPERATURE WITHIN THE RANGE OF 100*C. TO 150*C. IN THE PRESENCE OF CATALYST CONTAINING PALLADIUM AS THE ACTIVE INGREDIENT AND UNDER PRESSURE NOT IN EXCESS OF ABOUT 300 LBS./SQ. INCH GAUGE.
References Cited (Backward Citations)
US2328719A
Cited
US2443015A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-31 | 1961-09-30 | 1962-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-31 | 1965-09-30 | 1966-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-31 | 1969-09-30 | 1970-04-01 | $7700.00 | Window Closed / Lapsed |