发明授权
US4624875A Protected card 失效
保护卡

Protected card
摘要:
A card assembly comprising a backing sheet, a first transparent film bonded to the backing sheet along one side margin area portion through a first pressure sensitive adhesive coating, a transparent releasable film attached to the first transparent film along the remaining area portion, a cut line of a generally closed-loop configuration formed through the first transparent film and the releasable film to define a configuration corresponding to the circumference of a thin article to be interposed between the releasable sheet and the backing sheet, the configuration defining margin area portion on the releasable sheet being along the entire circumference thereof, and a second transparent film secured to the outer surface of the first transparent film along the entire surface thereof through an adhesive coating.
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