US2749274A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stable aqueous procaine penicillin suspension
Assignee: Bristol Laboratories Inc
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Filing: 1952-05-06
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Granted: 1956-06-05
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Expires: 1972-05-06
Abstract
No abstract record available.
Inventors
- 👤 Frank H Buckwalter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:32
CPC Classifications
A; A61; A61K; A61K47/00; A61K47/30; A61K47/36; A61K47/38; A61K31/00; A61K31/33; A61K31/395; A61K31/41; A61K31/425; A61K31/429; A61K31/43; A61K9/00; A61K9/0012; A61K9/0019
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
57 words
A STERILE, AQUEOUS SUSPENSION OF PROCAINE PENICILLIN WHICH IS STABLE OVER LONG PERIODS OF TIME AT ROOM TEMPERATURE AND WHICH IS PRODUCTIVE OF HIGHLY EFFECTIVE BLOOD LEVELS UPON ADMINISTRATION, INCLUDING PROCAINE PENICILLIN, A SUSPENDING AGENT, AND A MEMBER SELECTED FROM THE GROUP CONSISTING OF PROCAINE BASE AND WATER-SOLUBLE, IONIZED, INJECTABLE SALTS OF PROCAINE OTHER THAN PROCAINE PENICILLIN.
Claim 2
Dependent Claim
57 words
A STERILE, AQUEOUS SUSPENSION OF PROCAINE PENICILLIN WHICH IS STABLE OVER LONG PERIODS OF TIME AT ROOM TEMPERATURE AND WHICH IS PRODUCTIVE OF HIGHLY EFFECTIVE BLOOD LEVELS UPON ADMINISTRATION, INCLUDING PROCAINE PENICILLIN, A SUSPENDING AGENT, AND A MEMBER SELECTED FROM THE GROUP CONSISTING OF PROCAINE BASE AND WATER-SOLUBLE, IONIZED, INJECTABLE SALTS OF PROCAINE OTHER THAN PROCAINE PENICILLIN.
References Cited (Backward Citations)
US2515898A
Cited
GB658467A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-06-05 | 1959-12-05 | 1960-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-06-05 | 1963-12-05 | 1964-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-06-05 | 1967-12-05 | 1968-06-05 | $7700.00 | Window Closed / Lapsed |