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. 22, 1994
Filed:
May. 07, 1992
Michael Gilano, Irvine, CA (US);
Michael A Gilano, Newport Beach, CA (US);
Gordon B Langford, Sandy, UT (US);
The Ohio Art Company, Bryan, OH (US);
Abstract
An apparatus for providing a magnetic visual display in which a magnetic field is exposed to a dispersion medium sealed between two surfaces and having distributed therein randomly-oriented magnetically-active flakes, thereby causing alignment of a portion of the flakes and allowing transmission of light through the dispersion medium in the region of the aligned flakes to form an image by the contrast between the areas of aligned and randomly-oriented flakes. The contrast may be enhanced by a light source on the opposite side of the device from the viewer. The image may be colored by coloring either of the surfaces, the dispersion medium, the flakes or the light from the light source.