US2607770A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Streptomycyl amines and production thereof
Assignee: Schenley Industries Inc
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Filing: 1947-08-15
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Granted: 1952-08-19
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Expires: 1967-08-15
Abstract
No abstract record available.
Inventors
- 👤 Walter A Winsten
- 👤 Katz Murray
- 👤 Sidney R Safir
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:10
CPC Classifications
C; C07; C07H; C07H15/00; C07H15/20; C07H15/22; C07H15/238
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
THE PROCESS FOR MANUFACTURING AN ANTIBIOTIC AGENT RELATED TO STREPTOMYCIN THAT COMPRISES REACTING A SUBSTANCE OF THE GROUP CONSISTING OF STREPTOMYCIN AND ITS DERIVATIVES HAVING THE CHARACTERISTIC STREPTOSE ALDEHYDE-CARBONYL GROUP, WITH AN ALPHA AMINO MERCAPTO STRAIGHT CHAIN ALIPHATIC COMPOUND IN A SOLVENT REACTION MEDIUM, THEN REDUCING THIS REACTION PRODUCT WITH RANEY NICKEL TO PRODUCE AN ANTIBIOTICALLY ACTIVE SUBSTANCE DIFFERING FROM THE STARTING MATERIAL IN THAT THE STREPTOSE CARBONYL GROUP IS REPLACED BY A SUBSTITUENT OF THE CLASS CONSISTING OF ALKYL AMINO METHYLENE GROUPS AND SUBSTITUTED ALKYL AMINO METHYLENE GROUPS OF THE LOWER ALKYL SERIES, AND RECOVERING THIS HYDROGENATED COMPOUND FROM THE REACTION MIXTURE.
Claim 2
Dependent Claim
103 words
THE PROCESS FOR MANUFACTURING AN ANTIBIOTIC AGENT RELATED TO STREPTOMYCIN THAT COMPRISES REACTING A SUBSTANCE OF THE GROUP CONSISTING OF STREPTOMYCIN AND ITS DERIVATIVES HAVING THE CHARACTERISTIC STREPTOSE ALDEHYDE-CARBONYL GROUP, WITH AN ALPHA AMINO MERCAPTO STRAIGHT CHAIN ALIPHATIC COMPOUND IN A SOLVENT REACTION MEDIUM, THEN REDUCING THIS REACTION PRODUCT WITH RANEY NICKEL TO PRODUCE AN ANTIBIOTICALLY ACTIVE SUBSTANCE DIFFERING FROM THE STARTING MATERIAL IN THAT THE STREPTOSE CARBONYL GROUP IS REPLACED BY A SUBSTITUENT OF THE CLASS CONSISTING OF ALKYL AMINO METHYLENE GROUPS AND SUBSTITUTED ALKYL AMINO METHYLENE GROUPS OF THE LOWER ALKYL SERIES, AND RECOVERING THIS HYDROGENATED COMPOUND FROM THE REACTION MIXTURE.
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) | 1955-08-19 | 1956-02-18 | 1956-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-08-19 | 1960-02-18 | 1960-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-08-19 | 1964-02-18 | 1964-08-19 | $7700.00 | Window Closed / Lapsed |