US2523245A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the preparation of streptomycin
Assignee: Distillers Co Yeast Ltd
•
Filing: 1948-09-13
•
Granted: 1950-09-19
•
Expires: 1968-09-13
Abstract
No abstract record available.
Inventors
- 👤 Coppock Philip Dalton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:11
CPC Classifications
C; C12; C12P; C12P19/00; C12P19/44; C12P19/46; C12P19/54; Y; Y10; Y10S; Y10S435/00; Y10S435/812; Y10S435/8215; Y10S435/822; Y10S435/886; Y10S435/897
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
47 words
A PROCESS FOR THE PRODUCTION OF STREPTOMYCIN BY THE FERMENTATION OF A SUITABLE CULTURE MEDIUM BY MEANS OF A STREPTOMYCIN PRODUCING ORGANISM SUCH AS STREPTOMYCES GRISEUS UNDER AEROBIC CONDITIONS WHICH COMPRISES CARRYING OUT THE FERMENTATION IN THE PRESENCE OF AN ANTI-FOAMING COMPOUND CONSISTING OF A DIHYDROCARBON SILOXANE.
Claim 2
Dependent Claim
47 words
A PROCESS FOR THE PRODUCTION OF STREPTOMYCIN BY THE FERMENTATION OF A SUITABLE CULTURE MEDIUM BY MEANS OF A STREPTOMYCIN PRODUCING ORGANISM SUCH AS STREPTOMYCES GRISEUS UNDER AEROBIC CONDITIONS WHICH COMPRISES CARRYING OUT THE FERMENTATION IN THE PRESENCE OF AN ANTI-FOAMING COMPOUND CONSISTING OF A DIHYDROCARBON SILOXANE.
References Cited (Backward Citations)
US2375007A
Cited
US2448790A
Cited
US2406671A
Cited
US2416504A
Cited
US2443825A
Cited
US2443989A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-09-18 | 1954-03-20 | 1954-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-09-18 | 1958-03-20 | 1958-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-09-18 | 1962-03-20 | 1962-09-19 | $7700.00 | Window Closed / Lapsed |