Patent US2990330A successfully refreshed from Google Patents.
US2990330A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Streptomyces griseus strain 528 nrrl 2607 antibiotic and fermentation process
Assignee: Individual
•
Filing: 1957-06-06
•
Granted: 1961-06-27
•
Expires: 1977-06-06
Abstract
No abstract record available.
Inventors
- 👤 Gattani Mohan Lal
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:28
CPC Classifications
A; A61; A61K; A61K35/00; A61K35/66; A61K35/74; C; C12; C12N; C12N1/00; C12N1/20; C12N1/205; C12R; C12R2001/00; C12R2001/01; C12R2001/465; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/822; Y10S435/886; Y10S435/897
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
55 words
A PROCESS FOR PRODUCING UREDOLYSIN WHICH COMPRISES PROPAGATING A CULTURE OF STREPTOMYCES GRISEUS STRAIN 528 NRRL 2607 IN A NUTRIENT MEDIUM UNDER SUBMERGED AEROBIC CONDITIONS AT A TEMPERATURE BETWEEN ABOUT 24* C. AND ABOUT 37*C. FOR A PERIOD OF FROM TWO TO SIX DAYS, AND RECOVERING THE SO PRODUCED UREDOLYSIN FROM THE RESULTING FERMENTATION LIQUOR.
Claim 2
Dependent Claim
55 words
A PROCESS FOR PRODUCING UREDOLYSIN WHICH COMPRISES PROPAGATING A CULTURE OF STREPTOMYCES GRISEUS STRAIN 528 NRRL 2607 IN A NUTRIENT MEDIUM UNDER SUBMERGED AEROBIC CONDITIONS AT A TEMPERATURE BETWEEN ABOUT 24* C. AND ABOUT 37*C. FOR A PERIOD OF FROM TWO TO SIX DAYS, AND RECOVERING THE SO PRODUCED UREDOLYSIN FROM THE RESULTING FERMENTATION LIQUOR.
References Cited (Backward Citations)
US2649401A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-26 | 1964-12-26 | 1965-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-26 | 1968-12-26 | 1969-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-26 | 1972-12-26 | 1973-06-27 | $7700.00 | Window Closed / Lapsed |