Patent US3867289A successfully refreshed from Google Patents.
Patent US3153102A successfully refreshed from Google Patents.
US3153102A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the preparation of 1, 3, 5-trivinylbenzene
Assignee: Rohm and Haas Co
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Filing: 1962-10-30
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Granted: 1964-10-13
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Expires: 1982-10-30
Abstract
No abstract record available.
Inventors
- 👤 Theodore E Bockstahler
- 👤 Charles H Mckeever
- 👤 Joseph W Nemec
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:53
CPC Classifications
C; C07; C07C; C07C1/00; C07C1/20; C07C1/207; C07C2521/00; C07C2521/02; C07C2521/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
56 words
A PROCESS FOR THE PREPARATION OF 1,3,5-TRIVINYLBENZENE COMPRISING REACTING 1,3,5-TRIACETYLBENZENE AND AN ALCOHOL SELECTED FROM THE CLASS CONSISTING OF ETHANOL AND SECONDARY ALKANOLS OF UP TO EIGHT CARBON ATOMS IN THE TEMPERATURE RANGE OF ABOUT 220* TO 350*C. IN THE PRESENCE OF ALUMINA THAT HAS A SURFACE AREA OF AT LEAST 10 SQUARE METERS PER GRAM.
Claim 2
Dependent Claim
56 words
A PROCESS FOR THE PREPARATION OF 1,3,5-TRIVINYLBENZENE COMPRISING REACTING 1,3,5-TRIACETYLBENZENE AND AN ALCOHOL SELECTED FROM THE CLASS CONSISTING OF ETHANOL AND SECONDARY ALKANOLS OF UP TO EIGHT CARBON ATOMS IN THE TEMPERATURE RANGE OF ABOUT 220* TO 350*C. IN THE PRESENCE OF ALUMINA THAT HAS A SURFACE AREA OF AT LEAST 10 SQUARE METERS PER GRAM.
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) | 1967-10-13 | 1968-04-13 | 1968-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-10-13 | 1972-04-13 | 1972-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-10-13 | 1976-04-13 | 1976-10-13 | $7700.00 | Window Closed / Lapsed |