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:
Dec. 13, 1994
Filed:
Jun. 07, 1993
Applicant:
Inventors:
Mark K Malmros, Newton, PA (US);
Raymond J Tucci, Yardley, PA (US);
Pier J Cipriani, Newtown, PA (US);
Assignee:
CTM Associates, Inc., Newtown, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K / ;
U.S. Cl.
CPC ...
424-71 ; 5142262 ; 544 37 ;
Abstract
A biological stain composition contains toluidine blue O and a pharmaceutically acceptable oxidizing agent to convert any leuco toluidine blue O to the chromo form. A dry composition for preparing the stain includes the toluidine blue O, the oxidizing agent and an effervescent agent. These compositions are preferably buffered to improve shelf stability and clinical consistency. Compositions for intra-oral application contain a flavoring agent.