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. 14, 1989
Filed:
Feb. 26, 1987
James N Turner, Delmar, NY (US);
Health Research Inc., Albany, NY (US);
Abstract
This invention provides a standard specimen useful for the quantitative evaluation of performance of stains, staining solutions and staining processes used on biological specimens, and also for the evaluation of dyestuffs. The standard specimens are comprised of extracts of biological materials containing protein and/or nucleic acid which are incorporated into a reproducible plastic matrix of controlled thickness. The standard specimen so produced is useful in the quantitative performance evaluation of a dyeing or staining process, thereby providing information for process control and quantitative analysis and comparisons. The invention also provides for the method of preparing the standard specimen of the invention, as well as for the method of using the standard specimen.