US2553470A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of alkenyl phenols
Assignee: Universal Oil Products Co
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Filing: 1947-10-04
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Granted: 1951-05-15
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Expires: 1967-10-04
Abstract
No abstract record available.
Inventors
- 👤 Pines Herman
- 👤 Jerome A Vesely
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:28
CPC Classifications
C; C07; C07C; C07C37/00; C07C37/11; C07C37/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
A PROCESS FOR THE PRODUCTION OF AN ALKENYL PHENOL WHICH COMPRISES REACTING A PHENOL HAVING A SUBSTITUTABLE HYDROGEN ATOM ATTACHED TO THE RING WITH AN ALKADIENE HAVING AT LEAST ONE TERTIARY CARBON ATOM AND IN WHICH ONLY ONE OF THE DOUBLE BONDS IS ATTACHED TO A TERTIARY CARBON ATOM, AT A TEMPERATURE OF FROM ABOUT -10* C. TO ABOUT 100* C. AND IN THE PRESENCE OF A COMPLEX OF STANNIC CHLORIDE WITH A COMPOUND SELECTED FROM THE GROUP CONSISTING OF LOWER MOLECULAR WEIGHT SATURATED ALIPHATIC MONO-ALCOHOLS AND LOWER MOLECULAR WEIGHT SATURATED ALIPHATIC MONOETHERS AND CYCLIC DIETHERS.
Claim 2
Dependent Claim
96 words
A PROCESS FOR THE PRODUCTION OF AN ALKENYL PHENOL WHICH COMPRISES REACTING A PHENOL HAVING A SUBSTITUTABLE HYDROGEN ATOM ATTACHED TO THE RING WITH AN ALKADIENE HAVING AT LEAST ONE TERTIARY CARBON ATOM AND IN WHICH ONLY ONE OF THE DOUBLE BONDS IS ATTACHED TO A TERTIARY CARBON ATOM, AT A TEMPERATURE OF FROM ABOUT -10* C. TO ABOUT 100* C. AND IN THE PRESENCE OF A COMPLEX OF STANNIC CHLORIDE WITH A COMPOUND SELECTED FROM THE GROUP CONSISTING OF LOWER MOLECULAR WEIGHT SATURATED ALIPHATIC MONO-ALCOHOLS AND LOWER MOLECULAR WEIGHT SATURATED ALIPHATIC MONOETHERS AND CYCLIC DIETHERS.
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) | 1954-05-14 | 1954-11-13 | 1955-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-14 | 1958-11-13 | 1959-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-14 | 1962-11-13 | 1963-05-15 | $7700.00 | Window Closed / Lapsed |