US3014845A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of 6-aminopenicillanic acid
Assignee: Individual
•
Filing: 1960-01-25
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Granted: 1961-12-26
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Expires: 1980-01-25
Abstract
No abstract record available.
Inventors
- 👤 Rolinson George Newbolt
- 👤 Richards Merfyn
- 👤 Batchelor Frank Ralph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 03:56
CPC Classifications
C; C07; C07D; C07D499/00; C07D499/21; C07D499/42; C12; C12N; C12N9/00; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/822; Y10S435/886; Y10S435/899; Y10S435/911
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
105 words
A PROCESS FOR THE PREPARATION OF AN AQUEOUS SOLUTION OF 6-AMINOPENICILLANIC ACID WHICH COMPRISES IN SEQUENCE (1) GROWING A CULTURE OF STREPTOMYCES LAVENDULAE IN A SUITABLE LIQUID NUTRIENT GROWTH MEDIUM FOR A PERIOD OF 2 TO 6 DAYS WHEREBY FERMENTATION BROTH IS PRODUCED, (2) SEPARATING THE MAJOR PORTION OF THE SOLID MATERIALS FROM SAID FERMENTATION BROTH, (3) MIXING N-HEPTYL PENICILLIN WITH SAID FERMENTATION BROTH TO FORM AN AQUEOUS REACTION MIXTURE AND (4) MAINTAINING SAID AQUEOUS REACTION MIXTURE AT A TEMPERATURE FROM ABOUT 25 TO 60*C. AT A PH OF FROM ABOUT 6 TO 11 FOR A PERIOD OF FROM ABOUT 2 TO ABOUT 24 HOURS.
Claim 2
Dependent Claim
105 words
A PROCESS FOR THE PREPARATION OF AN AQUEOUS SOLUTION OF 6-AMINOPENICILLANIC ACID WHICH COMPRISES IN SEQUENCE (1) GROWING A CULTURE OF STREPTOMYCES LAVENDULAE IN A SUITABLE LIQUID NUTRIENT GROWTH MEDIUM FOR A PERIOD OF 2 TO 6 DAYS WHEREBY FERMENTATION BROTH IS PRODUCED, (2) SEPARATING THE MAJOR PORTION OF THE SOLID MATERIALS FROM SAID FERMENTATION BROTH, (3) MIXING N-HEPTYL PENICILLIN WITH SAID FERMENTATION BROTH TO FORM AN AQUEOUS REACTION MIXTURE AND (4) MAINTAINING SAID AQUEOUS REACTION MIXTURE AT A TEMPERATURE FROM ABOUT 25 TO 60*C. AT A PH OF FROM ABOUT 6 TO 11 FOR A PERIOD OF FROM ABOUT 2 TO ABOUT 24 HOURS.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-12-25 | 1965-06-26 | 1965-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-25 | 1969-06-26 | 1969-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-25 | 1973-06-26 | 1973-12-26 | $7700.00 | Window Closed / Lapsed |