US3079305A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the enzymatic acylation of 6-aminopenicillanic acid
Assignee: Bayer AG
•
Filing: 1960-09-09
•
Granted: 1963-02-26
•
Expires: 1980-09-09
Abstract
No abstract record available.
Inventors
- 👤 Kaufmann Wilfried
- 👤 Bauer Klaus
- 👤 Offe Hans Albert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 20:23
CPC Classifications
C; C07; C07D; C07D499/00; C07D499/04; C07D499/10; C07D499/12; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/822; Y10S435/848; Y10S435/849
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
PROCESS FOR THE PRODUCTION OF A 6-ACYLAMINOPENICILLANIC ACID, THAT COMPRISES CULTIVATING IN A NUTRIENT MEDIUM UNDER AEROBIC CONDITIONS AT AN APPROXIMATELY NEUTRAL PH, A CULTURE OF ESCHERICHIA COLI; SEPARATING THE BACTERIAL CELLS FROM THE CULTURE SOLUTION AND SUSPENDING SAID CELLS IN AN AQUEOUS MEDIUM; ADDING THERETO 6-AMINOPENICLLANIC ACID AND A CARBOXYLIC ACID DERIVITIVE CONTAINING AN ACYL RADICAL OF THE GENERAL FORMULA:
Claim 2
Dependent Claim
61 words
PROCESS FOR THE PRODUCTION OF A 6-ACYLAMINOPENICILLANIC ACID, THAT COMPRISES CULTIVATING IN A NUTRIENT MEDIUM UNDER AEROBIC CONDITIONS AT AN APPROXIMATELY NEUTRAL PH, A CULTURE OF ESCHERICHIA COLI; SEPARATING THE BACTERIAL CELLS FROM THE CULTURE SOLUTION AND SUSPENDING SAID CELLS IN AN AQUEOUS MEDIUM; ADDING THERETO 6-AMINOPENICLLANIC ACID AND A CARBOXYLIC ACID DERIVITIVE CONTAINING AN ACYL RADICAL OF THE GENERAL FORMULA:
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) | 1966-02-25 | 1966-08-27 | 1967-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-25 | 1970-08-27 | 1971-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-25 | 1974-08-27 | 1975-02-26 | $7700.00 | Window Closed / Lapsed |