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US2834710A
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Pancreatic desoxyribonuclease penicillin composition and process of preparation
Assignee: Merck and Co Inc
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Filing: 1955-06-29
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Granted: 1958-05-13
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Expires: 1975-06-29
Abstract
No abstract record available.
Inventors
- 👤 Baumgarten Werner
- 👤 Reginald F Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:24
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/33; A61K31/395; A61K31/41; A61K31/425; A61K31/429; A61K31/43; A61K38/00; A61K38/16; A61K38/43; A61K38/46; A61K38/465
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
41 words
A DRY STABLE LYOPHILIZED POWDER CONTAINING PENICILLIN, PANCREATIC DESOXYRIBONUCLEASE, SODIUM GLYCEROPHOSPHATE AS A PH 7 BUFFER AND AS A STABLIZER THEREFOR CALCIUM IONS, WHICH COMPOSITION, WHEN RECONSTITUTED WITH A DILUENT, RESULTS IN A HOMOGENEOUS SOLUTION MAINTAINING MAXIMUM ENZYMATIC AND ANTIBIOTIC ACTIVITY.
Claim 2
Dependent Claim
41 words
A DRY STABLE LYOPHILIZED POWDER CONTAINING PENICILLIN, PANCREATIC DESOXYRIBONUCLEASE, SODIUM GLYCEROPHOSPHATE AS A PH 7 BUFFER AND AS A STABLIZER THEREFOR CALCIUM IONS, WHICH COMPOSITION, WHEN RECONSTITUTED WITH A DILUENT, RESULTS IN A HOMOGENEOUS SOLUTION MAINTAINING MAXIMUM ENZYMATIC AND ANTIBIOTIC ACTIVITY.
References Cited (Backward Citations)
US2477171A
Cited
US2589210A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-05-12 | 1961-11-11 | 1962-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-12 | 1965-11-11 | 1966-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-12 | 1969-11-11 | 1970-05-13 | $7700.00 | Window Closed / Lapsed |