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. 07, 1989
Filed:
Jan. 02, 1986
Lawrence Kass, Hinckley, OH (US);
Cytocolor, Inc., Hinckley, OH (US);
Abstract
This invention is directed to the use of specific polymethine dyes for staining fixed biopsy specimens of hematopoietic origin consisting of blood, bone marrow and lymph node cells for purposes of identifying and enumerating the stained cells when viewed under dark field illumination. The polymethine dyes, e.g. Astrazon Red Violet FRR, stain the lymphocyte subpopulations distinct colors capable of being viewed under dark field illumination for purposes of distinguishing one stained cell from another. This method of staining and the compositions thereof represents an advance in the art of lymphocyte subpopulation identification which was achieved heretofore primarily by using monoclonal antibody techniques.