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:
May. 28, 1991
Filed:
Nov. 16, 1989
Applicant:
Inventors:
Michael Gilano, Irvine, CA (US);
Gordon B Langford, Sandy, UT (US);
Michael A Gilano, Irvine, CA (US);
Assignee:
The Ohio Art Company, Bryan, OH (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B43L / ;
U.S. Cl.
CPC ...
434409 ; 434309 ;
Abstract
An apparatus and method for providing a magnetic display in which a magnetic field produces visual patterns upon exposure to the apparatus. The apparatus comprises an enclosure which contains magnetically active flakes held within a dispersion medium which holds the magnetically active flakes in suspension, yet allows alignment of the flakes along the flux lines of the magnetic field when the flakes are exposed to the locus of the magnetic field.