Patent US3137640A successfully refreshed from Google Patents.
US3137640A
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Process of producing mikamycins a and b containing high content of b component
Assignee: Kanegafuchi Chemical Industry Co Ltd
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Filing: 1961-03-28
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Granted: 1964-06-16
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Expires: 1981-03-28
Abstract
No abstract record available.
Inventors
- 👤 Watanabe Kiyoshi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:02
CPC Classifications
C; C07; C07K; C07K7/00; C07K7/04; C07K7/06; Y; Y10; Y10S; Y10S435/00; Y10S435/803; Y10S435/8215; Y10S435/822; Y10S435/886; Y10S530/00; Y10S530/82; Y10S530/825; Y10S930/00; Y10S930/01; Y10S930/19; Y10S930/27
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
AN IMPROVED PROCESS FOR CULTIVATING STREPTOMYCES MITAKAENSIS WHICH COMPRISES FERMENTING A MUTANT OF STREPTOMYCES MITAKANSIS (IAM NO. 0407) BY AN AEROBIC SUBMERGED CULIVATION IN AN AQUEOUS ORGANIC NUTRIENT MEDIUM CONTAINING AT LEAST ONE INORGANIC SALT SELECTED FROM THE GROUP CONSISTING OF CACL2, CACO3, FESO4, MGSO4, AND ZNSO4, THEREBY OBTAINING A CULTURED BROTH CONTAINING MIKAMYCIN A AND B, THE WEIGHT RATIO BETWEEN SAID MIKAMYCIN A AND B BEING 90-70:10-30.
Claim 2
Dependent Claim
68 words
AN IMPROVED PROCESS FOR CULTIVATING STREPTOMYCES MITAKAENSIS WHICH COMPRISES FERMENTING A MUTANT OF STREPTOMYCES MITAKANSIS (IAM NO. 0407) BY AN AEROBIC SUBMERGED CULIVATION IN AN AQUEOUS ORGANIC NUTRIENT MEDIUM CONTAINING AT LEAST ONE INORGANIC SALT SELECTED FROM THE GROUP CONSISTING OF CACL2, CACO3, FESO4, MGSO4, AND ZNSO4, THEREBY OBTAINING A CULTURED BROTH CONTAINING MIKAMYCIN A AND B, THE WEIGHT RATIO BETWEEN SAID MIKAMYCIN A AND B BEING 90-70:10-30.
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) | 1967-06-16 | 1967-12-16 | 1968-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-16 | 1971-12-16 | 1972-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-16 | 1975-12-16 | 1976-06-16 | $7700.00 | Window Closed / Lapsed |