US2671748A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition of matter
Assignee: Parke Davis and Co LLC
•
Filing: 1950-05-18
•
Granted: 1954-03-09
•
Expires: 1970-05-18
Abstract
No abstract record available.
Inventors
- 👤 Jr Harry M Crooks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:41
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/70
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
37 words
A CLEAR, STABLE, LIQUID THERAPEUTIC COMPOSITION COMPRISING AN ANTIBIOTIC OF THE CLASS CONSISTING OF CHLORAMPHENICOL AND OPTICALLY RACEMIC CHLORAMPHENICOL DISSOLVED IN A WATER-MISCIBLE AMIDE SOLUTION CONTAINING AT LEASTS 30% BY VOLUME OF A WATER-MISCIBLE AMIDE OF FORMULA,
Claim 2
Dependent Claim
37 words
A CLEAR, STABLE, LIQUID THERAPEUTIC COMPOSITION COMPRISING AN ANTIBIOTIC OF THE CLASS CONSISTING OF CHLORAMPHENICOL AND OPTICALLY RACEMIC CHLORAMPHENICOL DISSOLVED IN A WATER-MISCIBLE AMIDE SOLUTION CONTAINING AT LEASTS 30% BY VOLUME OF A WATER-MISCIBLE AMIDE OF FORMULA,
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) | 1957-03-08 | 1957-09-07 | 1958-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-08 | 1961-09-07 | 1962-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-08 | 1965-09-07 | 1966-03-09 | $7700.00 | Window Closed / Lapsed |