US2544272A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Penicillin salt suspensions
Assignee: Eli Lilly and Co
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Filing: 1948-01-08
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Granted: 1951-03-06
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Expires: 1968-01-08
Abstract
No abstract record available.
Inventors
- 👤 Henry C Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:29
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
67 words
A READILY REDISPERSIBLE SUBSTANTIALLY WATERFREE THERAPEUTIC COMPOSITION COMPRISING A MAJOR PROPORTION OF AN OLEAGINOUS VEHICLE, A MINOR PROPORTION OF A FINELY DIVIDED WATER-INSOLUBLE, AND OIL-INSOLUBLE ORGANIC PENICILIN SALT AND AN AMOUNT EFFECTIVE TO CAUSE REDISPERSION AND LESS THAN ABOUT ONE PERCENT BY VOLUME OF AT LEAST ONE EMULSIFYING AGENT OF THE GROUP CONSISTING OF THE FATTY ACID PARTIAL ESTERS OF HEXITIL ANHYDRIDES AND THEIR POLYALKYLENE OXIDE DERIVATIVES.
Claim 2
Dependent Claim
67 words
A READILY REDISPERSIBLE SUBSTANTIALLY WATERFREE THERAPEUTIC COMPOSITION COMPRISING A MAJOR PROPORTION OF AN OLEAGINOUS VEHICLE, A MINOR PROPORTION OF A FINELY DIVIDED WATER-INSOLUBLE, AND OIL-INSOLUBLE ORGANIC PENICILIN SALT AND AN AMOUNT EFFECTIVE TO CAUSE REDISPERSION AND LESS THAN ABOUT ONE PERCENT BY VOLUME OF AT LEAST ONE EMULSIFYING AGENT OF THE GROUP CONSISTING OF THE FATTY ACID PARTIAL ESTERS OF HEXITIL ANHYDRIDES AND THEIR POLYALKYLENE OXIDE DERIVATIVES.
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) | 1954-03-05 | 1954-09-04 | 1955-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-03-05 | 1958-09-04 | 1959-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-03-05 | 1962-09-04 | 1963-03-06 | $7700.00 | Window Closed / Lapsed |