Patent US2768117A successfully refreshed from Google Patents.
US2768117A
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Production of penicillin employing media containing cytidene and cysteine
Assignee: Bristol Laboratories Inc
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Filing: 1952-09-15
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Granted: 1956-10-23
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Expires: 1972-09-15
Abstract
No abstract record available.
Inventors
- 👤 Kaplan Murray Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:55
CPC Classifications
C; C12; C12P; C12P37/00; C12N; C12N1/00; C12N1/14; C12N1/145; C12N1/16; C12N1/18; C12N1/185; C12Q; C12Q1/00; C12Q1/02; C12Q1/04; C12R; C12R2001/00; C12R2001/645; Y; Y10; Y10S; Y10S435/00; Y10S435/803
Claims Analysis
Total Claims: 0
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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) | 1959-10-23 | 1960-04-23 | 1960-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-23 | 1964-04-23 | 1964-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-23 | 1968-04-23 | 1968-10-23 | $7700.00 | Window Closed / Lapsed |