US2883328A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of cephalosporin n
Assignee: Individual
•
Filing: 1953-12-07
•
Granted: 1959-04-21
•
Expires: 1973-12-07
Abstract
No abstract record available.
Inventors
- 👤 Florey Howard Walter
- 👤 Abraham Edward Penley
- 👤 Newton Guy Geoffrey Frederick
- 👤 Burton Henry Stowar
- 👤 Kelly Brendan Kevin
- 👤 Hale Clifford William
- 👤 Miller George Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:48
CPC Classifications
C; C12; C12P; C12P37/00; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/911; Y10S435/925
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
A PROCESS FOR THE PRODUCTION OF CEPHALOSPORIUM N WHICH COMPRISES FERMENTING IN THE PRESENCE OF MOLECULAR OXYGEN WITH A MOULD OF THE SPECIES OF WHICH CEPHALOSPORIUM I.M.I. 49137 IS A MEMBER, A NUTRIENT MEDIUM CONTAINING AMMONIUM ACETATE, A SOURCE OF ORGANIC NITROGEN AND A SUGAR COMPONENT SELECTED FROM THE GROUP CONSISTING OF SUCROSE, LACTOSE AND MIXTURES OF SUCROSE AND LACTOSE, AND SEPARATING THE MOULD AND THE ANTIBIOTIC MATERIAL THEREBY PRODUCED.
Claim 2
Dependent Claim
70 words
A PROCESS FOR THE PRODUCTION OF CEPHALOSPORIUM N WHICH COMPRISES FERMENTING IN THE PRESENCE OF MOLECULAR OXYGEN WITH A MOULD OF THE SPECIES OF WHICH CEPHALOSPORIUM I.M.I. 49137 IS A MEMBER, A NUTRIENT MEDIUM CONTAINING AMMONIUM ACETATE, A SOURCE OF ORGANIC NITROGEN AND A SUGAR COMPONENT SELECTED FROM THE GROUP CONSISTING OF SUCROSE, LACTOSE AND MIXTURES OF SUCROSE AND LACTOSE, AND SEPARATING THE MOULD AND THE ANTIBIOTIC MATERIAL THEREBY PRODUCED.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-20 | 1962-10-20 | 1963-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-20 | 1966-10-20 | 1967-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-20 | 1970-10-20 | 1971-04-21 | $7700.00 | Window Closed / Lapsed |