Patent US3280139A successfully refreshed from Google Patents.
US3280139A
Expired / Lapsed
US
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Substituted nitroimidazoles
Assignee: Delmar Chemicals Inc
•
Filing: 1963-03-29
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Granted: 1966-10-18
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Expires: 1983-03-29
Abstract
No abstract record available.
Inventors
- 👤 Klosa Josef
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:53
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/33; A61K31/395; A61K31/41; A61K31/415; C; C07; C07D; C07D233/00; C07D233/54; C07D233/66; C07D233/91; C07D233/92; C07D233/94
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
3 words
1-(B-HYDROXY-B-PHENYL)-ETHYL-2-METHYL-4NITRO-IMIDAZOLE. 1. 1-(B-HYDROXY-B-CHLOROMETHYL)-ETHYL-2METHYL-4-NITROIMIDAZOLE.
Claim 2
Dependent Claim
3 words
1-(B-HYDROXY-B-PHENYL)-ETHYL-2-METHYL-4NITRO-IMIDAZOLE. 1. 1-(B-HYDROXY-B-CHLOROMETHYL)-ETHYL-2METHYL-4-NITROIMIDAZOLE.
References Cited (Backward Citations)
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US2944061A
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US3010963A
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US3024166A
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US3036955A
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US3037909A
Cited
US3178446A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-17 | 1970-04-18 | 1970-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-17 | 1974-04-18 | 1974-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-17 | 1978-04-18 | 1978-10-18 | $7700.00 | Window Closed / Lapsed |