US3471512A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of aminophenyl-nitroimidazoles
Assignee: Merck and Co Inc
•
Filing: 1966-09-12
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Granted: 1969-10-07
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Expires: 1986-09-12
Abstract
No abstract record available.
Inventors
- 👤 Janos Kollonitsch
- 👤 Vincent F Verdi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:44
CPC Classifications
C; C07; C07D; C07D233/00; C07D233/54; C07D233/66; C07D233/91; C07D233/92; C07D233/93
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2563796A
Cited
US2861984A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-06 | 1973-04-07 | 1973-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-06 | 1977-04-07 | 1977-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-06 | 1981-04-07 | 1981-10-07 | $7700.00 | Window Closed / Lapsed |