US3634586A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stable aqueous suspensions of ampicillin
Assignee: Bristol Myers Co
•
Filing: 1968-12-04
•
Granted: 1972-01-11
•
Expires: 1988-12-04
Abstract
Abstract AN ANTIBACTERIAL COMPOSITION FOR INTRAMUSCULAR ADMINISTRATION AFTER RECONSTITUTION WITH WATER WHICH COMPRISES A MIXTURE OF A SOURCE OF SODIUM IONS AND FINELY-DIVIDED AMPHOTERIC AMPICILLIN COATED WITH BOTH A SURFACTANT AND A VISCOSITY REGULATOR. IN A PREFERRED EMBODIMENT FOR A SINGLE DOSE THE MIXTURE COMPRISES SODIUM CHLORIDE, TRISODIUM CITRATE AND 200 MESH AMPHOTERIC AMPICILLIN COATED WITH SMALL AMOUNTS OF LECITHIN AND POLYVINYLPYRROLIDONE; THE ADDITION OF STERILE WATER Q.S. 1 ML. PROVIDES A SUSPENSION WHICH IS STABLE AT ROOM TEMPERATURE FOR AT LEAST THREE MONTHS AND IS HIGHLY SUITED FOR INTRAMUSCULAR INJECTION.
Inventors
- 👤 Walter Edwin Kaser
- 👤 Murray Arthur Kaplan
- 👤 Alphonse Peter Granatek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:40
CPC Classifications
A; A61; A61K; A61K9/00; A61K9/48; A61K9/50; A61K31/00; A61K31/33; A61K31/395; A61K31/41; A61K31/425; A61K31/429; A61K31/43
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1975-01-10 | 1975-07-12 | 1976-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-10 | 1979-07-12 | 1980-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-10 | 1983-07-12 | 1984-01-11 | $7700.00 | Window Closed / Lapsed |