US3378552A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Imidazole compounds and methods of making the same
Assignee: Merck and Co Inc
•
Filing: 1963-08-07
•
Granted: 1968-04-16
•
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 13:27
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)
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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 |