US3044936A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of producing solutions of chloramphenicol in aqueous liquids, and composition
Assignee: Roche Diagnostics GmbH
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Filing: 1958-12-02
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Granted: 1962-07-17
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Expires: 1978-12-02
Abstract
No abstract record available.
Inventors
- 👤 Daniel Johann Achelis
- 👤 Rudi Gall
- 👤 Erich Haack
- 👤 Wolfgang Voemel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:18
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/70
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
38 words
THE STABLE SOLUTION OF CHLORAMPHENICOL IN AN AQUEOUS LIQUID CONTAINING DISSOLVED THEREIN CHORAMPHENICOL AND, AND SOLUBILIZING AGENT, THE SODIUM SALT OF CHLORAMPHENICOL-3-SUCCINATE, THE MOLAR RATIO OF CHLORAMPHENICOL TO SODIUM SALT BEING BETWEEN ABOUT 1:1 AND A BOUT 2:1.
Claim 2
Dependent Claim
38 words
THE STABLE SOLUTION OF CHLORAMPHENICOL IN AN AQUEOUS LIQUID CONTAINING DISSOLVED THEREIN CHORAMPHENICOL AND, AND SOLUBILIZING AGENT, THE SODIUM SALT OF CHLORAMPHENICOL-3-SUCCINATE, THE MOLAR RATIO OF CHLORAMPHENICOL TO SODIUM SALT BEING BETWEEN ABOUT 1:1 AND A BOUT 2:1.
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) | 1965-07-16 | 1966-01-15 | 1966-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-16 | 1970-01-15 | 1970-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-16 | 1974-01-15 | 1974-07-17 | $7700.00 | Window Closed / Lapsed |