US2741573A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Penicillin compositions for intramuscular injection
Assignee: Abbott Laboratories
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Filing: 1953-12-28
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Granted: 1956-04-10
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Expires: 1973-12-28
Abstract
No abstract record available.
Inventors
- 👤 Frederick J Kirchmeyer
- 👤 Hugh C Vincent
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:12
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/33; A61K31/395; A61K31/41; A61K31/425; A61K31/429; A61K31/43
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
137 words
A HIGH POTENCY AQUEOUS PENICILLIN COMPOSITION COMPRISING A SUSPENSION OF AT LEAST ONE FINELY DIVIDED RELATIVELY WATER INSOLUBLE PENCILLIN SALT IN AN AQUEOUS VEHICLE SUITABLE FOR INTRAMUSCULAR INJECTION, AND HAVING A UNIT VOLUME CONCENTRATION BETWEEN 400,000 AND ABOUT 750,000 UNITS PENCILLIN PER CC., SAID SUSPENSION CONTAINING A PROPORTION OF RELVATIVELY VERY FINELY DIVIDED PARTICLES OF THE RELATIVELY WATER INSOLUBLE PENCILLIN SALT ADMIXED WITH A RELATIVELY WATER INSOLUBLE PENCILLIN SALT, THE MIXTURE OF THE FINELY DIVIDED RELATIVELY WATER INSOLUBLE PENCILLIN SALT PARTICLES HAVING A PARTICLE SIZE DISTRIBUTION CURVE WITH ONE MAXIMUM THEREOF OCCURRING BETWEEN THE 0 TO 10 MICRON PARTICLE SIZE RANGE AND A SECOND MAXIMUM OCCURRING ABOVE ABOUT THE 50 MICRON PARTICLES SIZE RANGE, AND SAID SUSPENSION FORMING A THIXOTROPIC AQUEOUS SUSPENSION HAVING A RHEOGRAM CURVE WHICH EXHIBITS A T3 VALUE BETWEEN ABOUT 10,000 AND 1,000,000 DYNE-CENTIMETERS.
Claim 2
Dependent Claim
137 words
A HIGH POTENCY AQUEOUS PENICILLIN COMPOSITION COMPRISING A SUSPENSION OF AT LEAST ONE FINELY DIVIDED RELATIVELY WATER INSOLUBLE PENCILLIN SALT IN AN AQUEOUS VEHICLE SUITABLE FOR INTRAMUSCULAR INJECTION, AND HAVING A UNIT VOLUME CONCENTRATION BETWEEN 400,000 AND ABOUT 750,000 UNITS PENCILLIN PER CC., SAID SUSPENSION CONTAINING A PROPORTION OF RELVATIVELY VERY FINELY DIVIDED PARTICLES OF THE RELATIVELY WATER INSOLUBLE PENCILLIN SALT ADMIXED WITH A RELATIVELY WATER INSOLUBLE PENCILLIN SALT, THE MIXTURE OF THE FINELY DIVIDED RELATIVELY WATER INSOLUBLE PENCILLIN SALT PARTICLES HAVING A PARTICLE SIZE DISTRIBUTION CURVE WITH ONE MAXIMUM THEREOF OCCURRING BETWEEN THE 0 TO 10 MICRON PARTICLE SIZE RANGE AND A SECOND MAXIMUM OCCURRING ABOVE ABOUT THE 50 MICRON PARTICLES SIZE RANGE, AND SAID SUSPENSION FORMING A THIXOTROPIC AQUEOUS SUSPENSION HAVING A RHEOGRAM CURVE WHICH EXHIBITS A T3 VALUE BETWEEN ABOUT 10,000 AND 1,000,000 DYNE-CENTIMETERS.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-04-10 | 1959-10-10 | 1960-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-10 | 1963-10-10 | 1964-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-10 | 1967-10-10 | 1968-04-10 | $7700.00 | Window Closed / Lapsed |