Patent US3378552A successfully refreshed from Google Patents.
US3378552A
Expired / Lapsed
US
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Imidazole compounds and methods of making the same
Assignee: Merck and Co Inc
•
Filing: 1963-08-07
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Granted: 1968-04-16
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Expires: 1983-08-07
Abstract
No abstract record available.
Inventors
- 👤 David W Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:16
CPC Classifications
C; C07; C07D; C07D405/00; C07D405/02; C07D405/06; C07D233/00; C07D233/54; C07D233/66; C07D233/91; C07D233/92; C07D233/93; C07D233/94
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
A COMPOUND HAVING THE FORMULA
Claim 2
Dependent Claim
38 words
THE PROCESS FOR PRODUCING 1-METHYL-2-(B-PHENYLVINYL)-5-NITROIMIDAZOLE THAT COMPRISES REACTING 1,2-DIMETHYL-5-NITROIMIDAZOLE WITH BENZALDEHYDE IN A STRONGLY BASIC REACTION MEDIUM CONTAINING AN ALKALI METAL LOWER ALKOXIDE, AN ALKALINE EARTH METAL LOWER ALKOXIDE, AN ALKALI METAL HYDROXIDE OR AN ALKALI METAL AMIDE.
References Cited (Backward Citations)
US2671783A
Cited
US2766233A
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US3065133A
Cited
US2944061A
Cited
US3050520A
Cited
US3107201A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-16 | 1971-10-16 | 1972-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-16 | 1975-10-16 | 1976-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-16 | 1979-10-16 | 1980-04-16 | $7700.00 | Window Closed / Lapsed |