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.

Date of Patent:
Dec. 14, 1993

Filed:

Jun. 28, 1991
Applicant:
Inventors:

Richard T Rigg, Springfield Garden, NY (US);

Patrick J Dunphy, Wellingborough, GB;

Paul C Dunnett, Willington, GB;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ; G01N / ;
U.S. Cl.
CPC ...
436 39 ; 422 56 ; 422 57 ; 436169 ; 436 41 ;
Abstract

A method and article is provided for distinguishing cosmetic sticks, especially lipsticks, containing water from those where water is absent. The method involves applying a test stick to a test paper or fabric impregnated with an indicator compound capable of changing color, forming a smear of the stick thereon and observing any change in color around an area of the smear.


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