US2763591A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tetracycline production using cottonseed endosperm flour
Assignee: Bristol Laboratories Inc
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Filing: 1954-12-07
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Granted: 1956-09-18
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Expires: 1974-12-07
Abstract
No abstract record available.
Inventors
- 👤 Alden B Hatch
- 👤 George A Hunt
- 👤 Lein Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:26
CPC Classifications
C; C12; C12P; C12P29/00; C12P13/00; C12P13/02; C12R; C12R2001/00; C12R2001/01; C12R2001/465; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/822; Y10S435/886; Y10S435/889
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
A PROCESS FOR THE PRODUCTION OF TETRACYCLINE WHICH COMPRISES AEROBICALLY GROWING A CULTURE OF A CHLORTETRACYCLINE-PRODUCING SPECIES OF STREPTOMYCES SELECTED FROM THE GROUP CONSISTING OF STREPTOMYCES AUREOFACIENS AND STREPTOMYCES VIRIDIFACIENS IN AN AQUEOUS CARBOHYHYDRATE SOLUTION CONTAINING A MIXTURE OF 0.1 TO 10.0 PER CENT OF SUBSTANTIALLY OIL-FREE COTONSEED ENDOSPERM FLOUR AND 0.1 TO 10.0 PER CENT OF A MEMBER SELECTED FROM THE GROUP CONSISTING OF BAKERS'' YEAST AND DECHLORINATED OORN STEEP LIQUOR.
Claim 2
Dependent Claim
72 words
A PROCESS FOR THE PRODUCTION OF TETRACYCLINE WHICH COMPRISES AEROBICALLY GROWING A CULTURE OF A CHLORTETRACYCLINE-PRODUCING SPECIES OF STREPTOMYCES SELECTED FROM THE GROUP CONSISTING OF STREPTOMYCES AUREOFACIENS AND STREPTOMYCES VIRIDIFACIENS IN AN AQUEOUS CARBOHYHYDRATE SOLUTION CONTAINING A MIXTURE OF 0.1 TO 10.0 PER CENT OF SUBSTANTIALLY OIL-FREE COTONSEED ENDOSPERM FLOUR AND 0.1 TO 10.0 PER CENT OF A MEMBER SELECTED FROM THE GROUP CONSISTING OF BAKERS'' YEAST AND DECHLORINATED OORN STEEP LIQUOR.
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) | 1959-09-18 | 1960-03-19 | 1960-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-09-18 | 1964-03-19 | 1964-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-09-18 | 1968-03-19 | 1968-09-18 | $7700.00 | Window Closed / Lapsed |