US3862008A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for deacetoxycephalosporin c.
Assignee: Eli Lilly and Co
•
Filing: 1973-12-03
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Granted: 1975-01-21
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Expires: 1993-12-03
Abstract
Abstract Deacetoxycephalosporin C is produced by culturing Streptomyces Clavuligerus NRRL 3585 and Streptomyces lipmanii NRRL 3584 under submerged aerobic fermentation conditions and is separated from other known metabolites and isolated chromatographically. Deacetoxycephalosporin C is useful in the preparation of 7aminodeacetoxycephalosporanic acid, 7-ADCA.
Inventors
- 👤 Robert L Hamill
- 👤 Ramakrishnan Nagarajan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 03:11
CPC Classifications
C; C12; C12P; C12P35/00; C12P35/06; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/822; Y10S435/886
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
13 words
The method of claim 1 wherein the streptomycete is S. lipmanii NRRL 3584.
Claim 2
Dependent Claim
13 words
The method of claim 1 wherein the streptomycete is S. clavuligerus NRRL 3585.
References Cited (Backward Citations)
US3719563A
Cited
US3770590A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-01-20 | 1978-07-22 | 1979-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-20 | 1982-07-22 | 1983-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-20 | 1986-07-22 | 1987-01-21 | $7700.00 | Window Closed / Lapsed |