US3399211A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of 2-aryl-4(5)-nitroimidazoles
Assignee: Merck and Co Inc
•
Filing: 1964-03-10
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Granted: 1968-08-27
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Expires: 1984-03-10
Abstract
No abstract record available.
Inventors
- 👤 Lewis H Sarett
- 👤 Dale R Hoff
- 👤 David W Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:01
CPC Classifications
C; C07; C07D; C07D233/00; C07D233/54; C07D233/64; C07D233/66; C07D233/91; C07D233/92; C07D233/93; C07D233/94; C07D233/95; C07D471/00; C07D471/02; C07D471/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-08-27 | 1972-02-26 | 1972-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-27 | 1976-02-26 | 1976-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-27 | 1980-02-26 | 1980-08-27 | $7700.00 | Window Closed / Lapsed |