US2515461A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for producing streptomycin on medium containing whole yeast
Assignee: Merck and Co Inc
•
Filing: 1946-11-16
•
Granted: 1950-07-18
•
Expires: 1966-11-16
Abstract
No abstract record available.
Inventors
- 👤 Lloyd E Mcdaniel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:28
CPC Classifications
C; C12; C12N; C12N1/00; C12N1/20; C12N1/205; C12P; C12P19/00; C12P19/44; C12P19/46; C12P19/54; C12R; C12R2001/00; C12R2001/01; C12R2001/465; C12R2001/545; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/822; Y10S435/886; Y10S435/897
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
42 words
THE PROCESS FOR THE PRODUCTION OF STREPTOMYCIN THAT COMPRISES PROPAGATING A STREPTOMYCIN PRODUCING STRAIN OF STREPTOMYCES GRISEUS UNDER AEROBIC SUBMERGED CONDITIONS IN A STERILE AQUEOUS MEDIUM HAVING NUTRIENT COMPONENTS CONSISTING OF ABOUT 2.5% WHOLE YEAST, A SOURCE OF CARBON, AN INORGANIC SALTS.
Claim 2
Dependent Claim
42 words
THE PROCESS FOR THE PRODUCTION OF STREPTOMYCIN THAT COMPRISES PROPAGATING A STREPTOMYCIN PRODUCING STRAIN OF STREPTOMYCES GRISEUS UNDER AEROBIC SUBMERGED CONDITIONS IN A STERILE AQUEOUS MEDIUM HAVING NUTRIENT COMPONENTS CONSISTING OF ABOUT 2.5% WHOLE YEAST, A SOURCE OF CARBON, AN INORGANIC SALTS.
References Cited (Backward Citations)
US1534387A
Cited
US2449866A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-07-17 | 1954-01-16 | 1954-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-17 | 1958-01-16 | 1958-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-17 | 1962-01-16 | 1962-07-18 | $7700.00 | Window Closed / Lapsed |