The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 30, 1976
Filed:
Sep. 03, 1974
William Kelly, deceased, LATE OF Liverpool, EN;
by Monica Kelly, representative, Liverpool, EN;
by John Kelly, representative, Great Sankey, near Warrington, EN;
Alfred Halpern, Village of Lake Success, NY (US);
The Purdue Frederick Company, Norwalk, CT (US);
Abstract
Choline salicylate sulfite and choline salicylate alkali metal sulfite-containing compounds of the formula, ##SPC1## Wherein Me represents the sodium, potassium or lithium ion and R represents the sulfite, bisulfite, metabisulfite, dithionate, hydrosulfite and hyposulfite groups are described. Said compounds are stable and inhibit the formation of color in pharmaceutical preparations containing the same. The method for the preparation of choline salicylate sulfite and choline salicylate alkali metal sulfite-containing compounds, and pharmaceutical dosage forms containing the same are disclosed together with a method for their use to inhibit color formation.