US2622057A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of solubilizing coal tar solution
Assignee: Sharp and Dohme Inc
•
Filing: 1950-12-18
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Granted: 1952-12-16
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Expires: 1970-12-18
Abstract
No abstract record available.
Inventors
- 👤 Augenblick Albert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 03:07
CPC Classifications
A; A61; A61K; A61K9/00; A61K9/0012; A61K9/0014; A61K47/00; A61K47/06; A61K47/16; A61K47/18; A61K47/186
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
65 words
A COMPOSITION COMPRISING COAL TAR SOLUTION AND, AS A SOLUBILIZING AGENT THEREFOR, A CETYL DIMETHYL-ETHYL AMMONIUM HALIDE, THE COAL TAR SOLUTION INCLUDING COAL TAR, QUILLAJA AND ETHANOL AND THE SAID SOLUBILIZING AGENT BEING PRESENT AT LEAST IN THE AMOUNT OF 0.05 GRAM PER CUBIC CENTIMETER OF COAL TAR SOLUTION, SAID COMPOSITION BEING A CONCENTRATE WHICH UPON SUBSEQUENT DILUTION WITH WATER YIELDS A CLEAR AQUEOUS SOLUTION.
Claim 2
Dependent Claim
65 words
A COMPOSITION COMPRISING COAL TAR SOLUTION AND, AS A SOLUBILIZING AGENT THEREFOR, A CETYL DIMETHYL-ETHYL AMMONIUM HALIDE, THE COAL TAR SOLUTION INCLUDING COAL TAR, QUILLAJA AND ETHANOL AND THE SAID SOLUBILIZING AGENT BEING PRESENT AT LEAST IN THE AMOUNT OF 0.05 GRAM PER CUBIC CENTIMETER OF COAL TAR SOLUTION, SAID COMPOSITION BEING A CONCENTRATE WHICH UPON SUBSEQUENT DILUTION WITH WATER YIELDS A CLEAR AQUEOUS SOLUTION.
References Cited (Backward Citations)
US2295504A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-16 | 1956-06-16 | 1956-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-16 | 1960-06-16 | 1960-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-16 | 1964-06-16 | 1964-12-16 | $7700.00 | Window Closed / Lapsed |