US2617755A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antibiotic production from streptomyces griseo-carneus
Assignee: Individual
•
Filing: 1950-05-22
•
Granted: 1952-11-11
•
Expires: 1970-05-22
Abstract
No abstract record available.
Inventors
- 👤 Robert G Benedict
- 👤 Frank H Stodola
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:46
CPC Classifications
C; C07; C07H; C07H15/00; C07H15/20; C07H15/22; C07H15/238; C12; C12N; C12N1/00; C12N1/20; C12N1/205; C12P; C12P19/00; C12P19/26; C12P19/28; C12R; C12R2001/00; C12R2001/01; C12R2001/465; Y; Y10; Y10S; Y10S435/00; Y10S435/803; Y10S435/8215; Y10S435/822; Y10S435/886
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
42 words
A PROCESS FOR PRODUCING HYDROXYXTREPTOMYCIN WHICH COMPRISES CULTIVATING STREPTOMYCES GRISEO-CARNEUS IN A MEDIUM COMPRISING AN ASSIMILABLE CARBON SOURCE AND AN ASSIMILABLE NITROGEN SOURCE, SEPARATING THE MYCELIAL GROWTH FROM THE MEDIUM AND SEPARATING THE HYDROXY STREPTOMYCIN BY ADSORPTION AND RECOVERING THE ADSORBED HYDROXYSTREPTOMYCIN.
Claim 2
Dependent Claim
42 words
A PROCESS FOR PRODUCING HYDROXYXTREPTOMYCIN WHICH COMPRISES CULTIVATING STREPTOMYCES GRISEO-CARNEUS IN A MEDIUM COMPRISING AN ASSIMILABLE CARBON SOURCE AND AN ASSIMILABLE NITROGEN SOURCE, SEPARATING THE MYCELIAL GROWTH FROM THE MEDIUM AND SEPARATING THE HYDROXY STREPTOMYCIN BY ADSORPTION AND RECOVERING THE ADSORBED HYDROXYSTREPTOMYCIN.
Claim 3
Dependent Claim
59 words
A PROCESS FOR PRODUCING HYDROXYSTREPTOMYCIN WHICH COMPRISES CULTIVATING A HYDROXYSTREPTOMYCIN-PRODUCING STRAIN OF STREPTOMYCES GRISEO-CARNEUS IN A MEDIUM COMPRISING A PROTEINACEOUS SOURCE OF ASSIMILABLE NITROGEN AND AN ASSIMILABLE CARBON SOURCE FOR 3-6 DAYS AT A TEMPERATURE IN THE RANGE OF 25*-35* C., SEPARATING THE MYCELIAL GROWTH FROM THE MEDIUM AND RECOVERING HYDROXYSTREPTOMYCIN BY ADSORPTION FROM THE MEDIUM FOLLOWED BY ELUTION.
Claim 4
Dependent Claim
59 words
A PROCESS FOR PRODUCING HYDROXYSTREPTOMYCIN WHICH COMPRISES CULTIVATING A HYDROXYSTREPTOMYCIN-PRODUCING STRAIN OF STREPTOMYCES GRISEO-CARNEUS IN A MEDIUM COMPRISING A PROTEINACEOUS SOURCE OF ASSIMILABLE NITROGEN AND AN ASSIMILABLE CARBON SOURCE FOR 3-6 DAYS AT A TEMPERATURE IN THE RANGE OF 25*-35* C., SEPARATING THE MYCELIAL GROWTH FROM THE MEDIUM AND RECOVERING HYDROXYSTREPTOMYCIN BY ADSORPTION FROM THE MEDIUM FOLLOWED BY ELUTION.
References Cited (Backward Citations)
US2449866A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-11-11 | 1956-05-12 | 1956-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-11 | 1960-05-12 | 1960-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-11 | 1964-05-12 | 1964-11-11 | $7700.00 | Window Closed / Lapsed |