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:
Jan. 14, 1992
Filed:
Jun. 07, 1990
Felix E Fernandez, Mayaguez, PR (US);
Charles M Falco, Tucson, AZ (US);
Abstract
A method is disclosed for making free standing multilayer films by depositing the films on a soluble substrate. The substrate solvent combination is chosen so that the solvent will not effect the multilayer materials. After deposition on the substrate, the multilayer films are cemented to a flat and smooth frame, in which a hole or window of the desired size and shape has been previously drilled. The adhesive, the films and the frame are insoluble in the chosen solvent for the substrate. After the adhesive is set, the substrate is dissolved leaving the multilayer film free standing within the frame. Also disclosed is a method for providing the films with a curvature.