US3006969A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alkylated phenols
Assignee: Shell USA Inc
•
Filing: 1956-11-13
•
Granted: 1961-10-31
•
Expires: 1976-11-13
Abstract
No abstract record available.
Inventors
- 👤 Kenneth F Koetitz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:32
CPC Classifications
C; C07; C07C; C07C37/00; C07C37/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
44 words
A PROCESS FOR PREPARING A 2,6-DIALKYL-PARA-ALKYLPHENOL FROM A 2,6-DIALKYL-PARA-ALKOXYALKYLPHENOL, WHICH COMPRISES HYDROGENOLYZING THE 2,6-DIALKYL-PARA-ALKOXYALKYLPHENOL IN THE PRESENCE OF A HYDROGENATION CATALYST AT A TEMPERATURE IN EXCESS OF ABOUT 110*C. BUT BELOW ABOUT 250*C. AND A PRESSURE FROM ABOUT 100 P.S.I.G TO ABOUT 3000 P.S.I.G.
Claim 2
Dependent Claim
44 words
A PROCESS FOR PREPARING A 2,6-DIALKYL-PARA-ALKYLPHENOL FROM A 2,6-DIALKYL-PARA-ALKOXYALKYLPHENOL, WHICH COMPRISES HYDROGENOLYZING THE 2,6-DIALKYL-PARA-ALKOXYALKYLPHENOL IN THE PRESENCE OF A HYDROGENATION CATALYST AT A TEMPERATURE IN EXCESS OF ABOUT 110*C. BUT BELOW ABOUT 250*C. AND A PRESSURE FROM ABOUT 100 P.S.I.G TO ABOUT 3000 P.S.I.G.
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) | 1964-10-30 | 1965-05-01 | 1965-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-30 | 1969-05-01 | 1969-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-30 | 1973-05-01 | 1973-10-31 | $7700.00 | Window Closed / Lapsed |