US2504067A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for production of streptomycin using fermentation solubles
Assignee: Pharmacia and Upjohn Co
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Filing: 1946-02-18
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Granted: 1950-04-11
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Expires: 1966-02-18
Abstract
No abstract record available.
Inventors
- 👤 Donald R Colingsworth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:30
CPC Classifications
C; C12; C12P; C12P19/00; C12P19/44; C12P19/46; C12P19/54; C07; C07K; C07K14/00; C07K14/195; C07K14/315; C12N; C12N1/00; C12N1/20; C12N1/205; C12P21/00; C12P21/02; C12R; C12R2001/00; C12R2001/01; C12R2001/46; C12R2001/465; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/822; Y10S435/886; Y10S435/897
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
42 words
A PROCESS FOR THE PRODUCTION OF STREPTOMYCIN BY A FERMENTATION PROCEDURE, WHICH COMPRISES; GROWING STREPTOMYCES GRISEUS ON A NUTRIENT MEDIUM CONTAINING FERMENTATION SOLUBLES OBTAINED FROM THE FERMENTATION OF CANE MOLASSES, AS A GROWTH-PROMOTING AND STREPTOMYCIN-PRODUCTION-STIMULATING FACTOR, AND ISOLATING THE STREPTOMYCIN THUS PRODUCED.
Claim 2
Dependent Claim
42 words
A PROCESS FOR THE PRODUCTION OF STREPTOMYCIN BY A FERMENTATION PROCEDURE, WHICH COMPRISES; GROWING STREPTOMYCES GRISEUS ON A NUTRIENT MEDIUM CONTAINING FERMENTATION SOLUBLES OBTAINED FROM THE FERMENTATION OF CANE MOLASSES, AS A GROWTH-PROMOTING AND STREPTOMYCIN-PRODUCTION-STIMULATING FACTOR, AND ISOLATING THE STREPTOMYCIN THUS PRODUCED.
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) | 1953-04-10 | 1953-10-10 | 1954-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-04-10 | 1957-10-10 | 1958-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-04-10 | 1961-10-10 | 1962-04-11 | $7700.00 | Window Closed / Lapsed |