US3293133A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of imparting color to pharmaceutical solutions
Assignee: ER Squibb and Sons LLC
•
Filing: 1963-04-24
•
Granted: 1966-12-20
•
Expires: 1983-04-24
Abstract
No abstract record available.
Inventors
- 👤 John A Hill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:45
CPC Classifications
A; A61; A61K; A61K9/00; A61K9/0087; A61K9/0095
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
A PROCESS FOR IMPARTING A UNIFORM COLOR TO AN AQUEOUS PHARMACEUTICAL SOLUTION WHICH COMPRISES (A) DISSOLVING A WATER INSOLUBLE PHARMACEUTICALLY ACCEPTABLE NON-TOXIC COLORING MATERIAL IN AN ORGANIC SOLVENT; (B) DISPERSING THE SAID COLORING MATERIAL OVER THE SURFACE OF A WATER SOLUBLE PHARMACEUTICALLY ACCEPTABLE FREE-FLOWING PARTICULATE MATERIAL SELECTED FROM THE GROUP CONSISTING OF SUGARS, SALTS AND HYDROCOLLOIDS BY CONTACTING SAID PARTICULATE MATERIAL WITH THE SAID COLORED ORGANIC SOLUTION; (C) REMOVING THE SAID ORGANIC SOLVENT TO OBTAIN A SUBSTANTIALLY DRY COLORING COMPOSITION COMPRISING PARTICULATE MATERIAL HAVING ADHERENT TO THE SURFACES THEREOF THE SAID INSOLUBLE COLORING MATERIAL; AND (D) INTIMATELY INTRODUCING INTO AN AQUEOUS PHARMACEUTICAL PRODUCT THE SAID COLORING COMPOSITION TO OBTAIN A UNIFORMLY COLORED AQUEOUS PHARMACEUTICAL SOLUTION.
Claim 2
Dependent Claim
115 words
A PROCESS FOR IMPARTING A UNIFORM COLOR TO AN AQUEOUS PHARMACEUTICAL SOLUTION WHICH COMPRISES (A) DISSOLVING A WATER INSOLUBLE PHARMACEUTICALLY ACCEPTABLE NON-TOXIC COLORING MATERIAL IN AN ORGANIC SOLVENT; (B) DISPERSING THE SAID COLORING MATERIAL OVER THE SURFACE OF A WATER SOLUBLE PHARMACEUTICALLY ACCEPTABLE FREE-FLOWING PARTICULATE MATERIAL SELECTED FROM THE GROUP CONSISTING OF SUGARS, SALTS AND HYDROCOLLOIDS BY CONTACTING SAID PARTICULATE MATERIAL WITH THE SAID COLORED ORGANIC SOLUTION; (C) REMOVING THE SAID ORGANIC SOLVENT TO OBTAIN A SUBSTANTIALLY DRY COLORING COMPOSITION COMPRISING PARTICULATE MATERIAL HAVING ADHERENT TO THE SURFACES THEREOF THE SAID INSOLUBLE COLORING MATERIAL; AND (D) INTIMATELY INTRODUCING INTO AN AQUEOUS PHARMACEUTICAL PRODUCT THE SAID COLORING COMPOSITION TO OBTAIN A UNIFORMLY COLORED AQUEOUS PHARMACEUTICAL SOLUTION.
References Cited (Backward Citations)
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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) | 1969-12-19 | 1970-06-20 | 1970-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-19 | 1974-06-20 | 1974-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-19 | 1978-06-20 | 1978-12-20 | $7700.00 | Window Closed / Lapsed |