US3932445A
Expired / Lapsed
US
⏱️ 0.0 years remaining
2-Aryl-4-(R-methyl)-5-methylimidazoles
Assignee: Janssen Pharmaceuticals Inc
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Filing: 1974-06-26
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Granted: 1976-01-13
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Expires: 1994-06-26
Abstract
Abstract 2-Aryl-5-methylimidazoles bearing various substituted methyls in the 4-position useful for their ultra-violet (U.V.) absorbing properties.
Inventors
- 👤 Chris Royce Rasmussen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 00:16
CPC Classifications
C; C07; C07D; C07D233/00; C07D233/54; C07D233/64; C08; C08K; C08K5/00; C08K5/16; C08K5/34; C08K5/3442; C08K5/3445
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
55 words
A compound selected from the group consisting of 2-aryl-5-methylimidazole-4-acetamide having the formula: ##SPC4## and mineral acid addition salts thereof, wherein Ar is a member selected from the group consisting of phenyl, methylenedioxyphenyl, loweralkanoylphenyl, loweralkylthiophenyl and phenyl substituted with 1 to 3 members selected from the group consisting of loweralkyl, loweralkoxy, halo, hydroxy, phenoxy and nitro.
Claim 2
Dependent Claim
55 words
A compound selected from the group consisting of 2-aryl-5-methylimidazole-4-acetamide having the formula: ##SPC4## and mineral acid addition salts thereof, wherein Ar is a member selected from the group consisting of phenyl, methylenedioxyphenyl, loweralkanoylphenyl, loweralkylthiophenyl and phenyl substituted with 1 to 3 members selected from the group consisting of loweralkyl, loweralkoxy, halo, hydroxy, phenoxy and nitro.
Claim 3
Dependent Claim
1 words
5-Methyl-2-phenylimidazole-4-acetamide.
Claim 4
Dependent Claim
1 words
5-Methyl-2-phenylimidazole-4-acetamide.
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) | 1979-01-12 | 1979-07-14 | 1980-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-01-12 | 1983-07-14 | 1984-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-01-12 | 1987-07-14 | 1988-01-13 | $7700.00 | Window Closed / Lapsed |