Patent US3082155A successfully refreshed from Google Patents.
US3082155A
Expired / Lapsed
US
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Production of cephalosporin c
Assignee: National Research Development Corp UK
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Filing: 1961-12-27
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Granted: 1963-03-19
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Expires: 1981-12-27
Abstract
No abstract record available.
Inventors
- 👤 Kelly Brendan Kevin
- 👤 Miller George Arthur
- 👤 Codner Richard Charles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 07:50
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
83 words
A PROCESS FOR THE PRODUCTION OF CEPHALOSPORIN C BY THE CULTURE OF A CEPHALOSPORIN C-PRODUCING MOULD OF THE SPECIES OF WHICH CEPHALOSPORIUM I.M.I. 49137 IS A MEMBER IN A MEDIUM CONTAINING SUITABLE NITRIENT MATERIALS THEREFOR, INCLUDING A SOURCE OF ORGANIC NITROGEN, IN THE PRESENCE OF MOLECULAR OXYGEN AND THE SEPARATION OF CEPHALOSPORIN C THEREBY PRODUCED WHEREIN THE ORGANIC NITROGEN SOURCE INCLUDES CORN STEEP LIQUOR PRESENT IN A QUANTITY SUFFICIENT TO PROVIDE A PROPORTION OF THE ORGANIC NITROGEN LESS THAN 20% OF THE TOTAL.
Claim 2
Dependent Claim
83 words
A PROCESS FOR THE PRODUCTION OF CEPHALOSPORIN C BY THE CULTURE OF A CEPHALOSPORIN C-PRODUCING MOULD OF THE SPECIES OF WHICH CEPHALOSPORIUM I.M.I. 49137 IS A MEMBER IN A MEDIUM CONTAINING SUITABLE NITRIENT MATERIALS THEREFOR, INCLUDING A SOURCE OF ORGANIC NITROGEN, IN THE PRESENCE OF MOLECULAR OXYGEN AND THE SEPARATION OF CEPHALOSPORIN C THEREBY PRODUCED WHEREIN THE ORGANIC NITROGEN SOURCE INCLUDES CORN STEEP LIQUOR PRESENT IN A QUANTITY SUFFICIENT TO PROVIDE A PROPORTION OF THE ORGANIC NITROGEN LESS THAN 20% OF THE TOTAL.
References Cited (Backward Citations)
US2831797A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-03-18 | 1966-09-17 | 1967-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-18 | 1970-09-17 | 1971-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-18 | 1974-09-17 | 1975-03-19 | $7700.00 | Window Closed / Lapsed |