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:
Aug. 31, 1999
Filed:
Jun. 04, 1997
Applicant:
Inventors:
Sanford A Asher, Pittsburgh, PA (US);
Jay Henis, St. Louis, MO (US);
Assignee:
University of Pittsburgh of the Commonwealth System of Higher Education, Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ; B01D / ; B01D / ; A61K / ;
U.S. Cl.
CPC ...
21050022 ; 106-3 ; 21050038 ; 21050042 ; 25230116 ; 424 61 ; 42721332 ;
Abstract
A coating material is provided which has fragments of a gel membrane filter in a liquid. The gel membrane filter has a plurality of electronegative particles provided in an ordered crystalline array. The gel membrane filter has been hardened with a polymer and is embodied in refractive fragments which alter the surface appearance of the resultant coating material. The coating material may be employed as a nail polish or as a paint.