US2980584A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Parenteral magnesium oxytetracycline acetic or lactic acid carboxamide vehicle preparation
Assignee: Pfizer Inc
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Filing: 1957-10-29
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Granted: 1961-04-18
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Expires: 1977-10-29
Abstract
No abstract record available.
Inventors
- 👤 Henry F Hammer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:03
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/65
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
137 words
A STABLE LIQUID ANTIBIOTIC COMPOSITION ADAPTED FOR PARENTERAL ADMINISTRATION COMPRISING, AS VEHICLE, AN AQUEOUS SOLUTION CONTAINING FROM 25 TO 80% BY WEIGHT OF A PHYSIOLOGICALLY ACCEPTABLE, WATER SOLUBLE, LOWER ALIPHATIC CARBOXAMIDE SELECTED FROM THE GROUP CONSISTING OF AN AMIDE OF ACETIC ACID AND AN AMIDE OF LACTIC ACID AND DISSOLVED IN SAID VEHICLE FROM 10 TO 100 MG./ML. OF A SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF OXYTETRACYCLINE AND AN ACID ADDITION SALT THEREOF, FROM 0.67 TO 1.0 MOLAR EQUIVALENT OF A WATER SOLUBLE, PHYSIOLOGICALLY ACCEPTABLE MAGNESIUM SALT PER MOLE OF OXYTETRACYCLINE, AND SUFFICIENT OF A WATER SOLUBLE, PHYSIOLOGICALLY ACCEPTABLE BASE SELECTED FROM THE GROUP CONSISTING OF AMMONIA AND A PHYSIOLOGICALLY ACCEPTABLE, WATER SOLUBLE LOWER ALIPHATIC AMINE HAVING A DISSOCIATION CONSTANT OF GREATER THAN 10-6 TO RPOVIDE SAID COMPOSITION WITH A PH OF ABOUT 8.5 TO 9.5.
Claim 2
Dependent Claim
137 words
A STABLE LIQUID ANTIBIOTIC COMPOSITION ADAPTED FOR PARENTERAL ADMINISTRATION COMPRISING, AS VEHICLE, AN AQUEOUS SOLUTION CONTAINING FROM 25 TO 80% BY WEIGHT OF A PHYSIOLOGICALLY ACCEPTABLE, WATER SOLUBLE, LOWER ALIPHATIC CARBOXAMIDE SELECTED FROM THE GROUP CONSISTING OF AN AMIDE OF ACETIC ACID AND AN AMIDE OF LACTIC ACID AND DISSOLVED IN SAID VEHICLE FROM 10 TO 100 MG./ML. OF A SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF OXYTETRACYCLINE AND AN ACID ADDITION SALT THEREOF, FROM 0.67 TO 1.0 MOLAR EQUIVALENT OF A WATER SOLUBLE, PHYSIOLOGICALLY ACCEPTABLE MAGNESIUM SALT PER MOLE OF OXYTETRACYCLINE, AND SUFFICIENT OF A WATER SOLUBLE, PHYSIOLOGICALLY ACCEPTABLE BASE SELECTED FROM THE GROUP CONSISTING OF AMMONIA AND A PHYSIOLOGICALLY ACCEPTABLE, WATER SOLUBLE LOWER ALIPHATIC AMINE HAVING A DISSOCIATION CONSTANT OF GREATER THAN 10-6 TO RPOVIDE SAID COMPOSITION WITH A PH OF ABOUT 8.5 TO 9.5.
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) | 1964-04-17 | 1964-10-17 | 1965-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-17 | 1968-10-17 | 1969-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-17 | 1972-10-17 | 1973-04-18 | $7700.00 | Window Closed / Lapsed |