Patent US3920814A successfully refreshed from Google Patents.
US3920814A
Expired / Lapsed
US
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Antibiotic composition containing an antibiotic and as a potentiating agent pyrrolidone carboxylic acid or derivative thereof
Assignee: Individual
•
Filing: 1973-08-13
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Granted: 1975-11-18
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Expires: 1993-08-13
Abstract
Abstract Potentiation of the antibacterial activity of antibiotics is achieved by administering the same in combination with pyrrolidone carboxylic acid or a derivative thereof.
Inventors
- 👤 Dominique Bocher
- 👤 Charles Pilet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:29
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/65
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
22 words
AN ANTIBIOTIC COMPOSITION COMPRISING GENTAMYCIN AND PYRROLIDONE CARBOXYLIC ACID, WHEREIN THE WEIGHT RATIO OF PYRROLIDONE CARBOXYLIC ACID TO GENTAMYCIN RANGES BETWEEN 1:5-100.
Claim 2
Dependent Claim
22 words
AN ANTIBIOTIC COMPOSITION COMPRISING GENTAMYCIN AND PYRROLIDONE CARBOXYLIC ACID, WHEREIN THE WEIGHT RATIO OF PYRROLIDONE CARBOXYLIC ACID TO GENTAMYCIN RANGES BETWEEN 1:5-100.
Claim 3
Dependent Claim
12 words
The composition of claim 1 wherein said weight ratio ranges between 1:10-50.
Claim 4
Dependent Claim
12 words
The composition of claim 1 which also includes a pharmaceutically acceptable vehicle.
Claim 5
Dependent Claim
14 words
The composition of claim 3 wherein said pharmaceutically acceptable vehicle is a sterile solution.
Claim 6
Dependent Claim
14 words
The composition of claim 3 wherein said pharmaceutically acceptable vehicle is an ingestible liquid.
Claim 7
Dependent Claim
15 words
The composition of claim 1 in the form of a powder, tablet, pill or capsule.
Claim 8
Dependent Claim
22 words
The composition of claim 1 packaged in an ampoule, said composition being in a form suitable for oral administration or intravenous injection.
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) | 1978-11-17 | 1979-05-19 | 1979-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-17 | 1983-05-19 | 1983-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-17 | 1987-05-19 | 1987-11-18 | $7700.00 | Window Closed / Lapsed |