US2957810A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Neomycin fermentation medium
Assignee: Pharmacia and Upjohn Co
•
Filing: 1955-02-21
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Granted: 1960-10-25
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Expires: 1975-02-21
Abstract
No abstract record available.
Inventors
- 👤 Le Roy E Johnson
- 👤 Harold J Koepsell
- 👤 Bruce W Churchill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:14
CPC Classifications
C; C07; C07H; C07H15/00; C07H15/20; C07H15/22; C07H15/222; C07H15/226; C07H15/228; C07H15/232; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/822; Y10S435/886; Y10S435/896
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
48 words
A NUTRIENT FERMENTATION MEDIUM FOR THE PRODUCTION OF NEOMYCIN IN ENHANCED YEILD COMPRISING, AS ESSENTIAL INGREDIENTS, BETWEEN ABOUT 3 AND ABOUT 8 PERCENT SOYBEAN MEAL, BETWEEN ABOUT ONE AND ABOUT 4 PERCENT OF A READILY ASSIMILABLE CARBOHYDRATE AND AT LEAST ABOUT THREE PERCENT OF A SLOWLY ASSIMILABLE POLYSACCHARIDE.
Claim 2
Dependent Claim
48 words
A NUTRIENT FERMENTATION MEDIUM FOR THE PRODUCTION OF NEOMYCIN IN ENHANCED YEILD COMPRISING, AS ESSENTIAL INGREDIENTS, BETWEEN ABOUT 3 AND ABOUT 8 PERCENT SOYBEAN MEAL, BETWEEN ABOUT ONE AND ABOUT 4 PERCENT OF A READILY ASSIMILABLE CARBOHYDRATE AND AT LEAST ABOUT THREE PERCENT OF A SLOWLY ASSIMILABLE POLYSACCHARIDE.
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) | 1963-10-25 | 1964-04-25 | 1964-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-25 | 1968-04-25 | 1968-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-25 | 1972-04-25 | 1972-10-25 | $7700.00 | Window Closed / Lapsed |