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. 03, 1993
Filed:
Nov. 23, 1987
Louis Vernhet, 12100 Millau, FR;
Francois Trantoul, 12100 Millau, FR;
Other;
Abstract
A process for producing protection product of a transferrable protective film for covering and protecting the surface of a document or another element, comprising providing a non-stick support sheet (1), at least one printing (2) of a polymerizable liquid mixture of a hydroxylated polyol and an isocyanate or polyisocyanate, for obtaining a thin transparent polyurethane film, covering said film with a transparent adhesive layer (3) and protecting said adhesive layer with a silicone protective sheet (4); the polyurethane film may be transferred without heat to the document to be protected in order to avoid falsification thereof and for protecting the document from external damaging elements.