US3139388A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing cephalosporinc
Assignee: Olin Corp
•
Filing: 1963-01-04
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Granted: 1964-06-30
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Expires: 1983-01-04
Abstract
No abstract record available.
Inventors
- 👤 Platt Thomas Boyne
- 👤 Frazier William Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:08
CPC Classifications
C; C12; C12P; C12P35/00; C12P35/06; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/911; Y10S435/925
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
62 words
IN A METHOD FOR PRODUCING CEPHALOSPORINC BY CULTURING A CEPHALOSPORIN C PRODUCING STRAIN OF CEPHALOSPORIUM IN A METHIONINE SUPPLEMENTED NUTRIENT MEDIUM, THE IMPROVEMENT WHICH COMPRISES ADDING TO SAID MEDIUM A COMPOUND SELECTED FROM THE GROUP CONSISTING OF 3,4,5TRIMETHOXYBENZOIC ACID, SHIKIMIC ACID, FOLIC ACID, GLUCURONIC ACID, I-ERYTHRITOL, TANNIC ACID, TRIMELLITIC ACID, INOSITOL, QUINIC ACID, GALACTURONIC ACID, GLYCEROL, CATEHOL, PYROGALLOL, ASCORBIC ACID AND BETAINE.
Claim 2
Dependent Claim
62 words
IN A METHOD FOR PRODUCING CEPHALOSPORINC BY CULTURING A CEPHALOSPORIN C PRODUCING STRAIN OF CEPHALOSPORIUM IN A METHIONINE SUPPLEMENTED NUTRIENT MEDIUM, THE IMPROVEMENT WHICH COMPRISES ADDING TO SAID MEDIUM A COMPOUND SELECTED FROM THE GROUP CONSISTING OF 3,4,5TRIMETHOXYBENZOIC ACID, SHIKIMIC ACID, FOLIC ACID, GLUCURONIC ACID, I-ERYTHRITOL, TANNIC ACID, TRIMELLITIC ACID, INOSITOL, QUINIC ACID, GALACTURONIC ACID, GLYCEROL, CATEHOL, PYROGALLOL, ASCORBIC ACID AND BETAINE.
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) | 1967-06-30 | 1967-12-30 | 1968-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-30 | 1971-12-30 | 1972-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-30 | 1975-12-30 | 1976-06-30 | $7700.00 | Window Closed / Lapsed |