Device for filing punched papers in folders

Claim 1

A FILING FOLDER COMPRISING: (A) A PAIR OF LEAFBOARDS HINGEDLY CONNECTED FOR MOVEMENT BETWEEN A CLOSED POSITION IN WHICH THE LEAFBOARDS ARE NORMALLY IN SPACED OPPOSED PARALLEL RELATIONSHIP, AND AN OPEN POSITION IN WHICH THE LEAFBOARDS ARE NORMALLY IN SPACED COPLANAR RELATIONSHIP; (B) TWO BASE PLATES RESPECTIVELY CARRIED BY SAID LEAFBOARDS, AND EACH FORMED WITH A HOLE THERETHROUGH; AND (C) TWO FLEXIBLE AND ELONGATED FILING STRIPS RESPECTIVELY ASSOCIATED WITH SAID BASE PLATES, (D) SAID HOLES AND STRIPS OF SAID BASE PLATES LOCATED ON SAID LEAFBOARDS AT POSITIONS SUBSTANTIALLY DIRECTLY ACROSS FROM EACH OTHER; (1) EACH FILLING STIP HAVING AN END PORTION SECURED TO THE ASSOCIATED BASE PLATE AND ANOTHER FREE END PORTION RECEIVED IN THE HOLE OF THE OTHER BASE PLATE FOR LONGITUDINAL MOVEMENT THEREIN DURING SAID MOVEMENT OF SAID LEAFBOARDS BETWEEN SAID POSITIONS THEREOF, (2) SAID FILING STRIPS EXTENDING IN SUPERIMPOSED BRIDGING RELATIONSHIP ACROSS AND TRANSVERSE TO THE SPACE BETWEEN THE LEAFBOARDS IN SUCH A MANNER THAT A PUNCHED PAPER MAY BE HELD IN THE FOLDER BY THE FILLING STRIPS JOINTLY PASSING THROUGH A HOLE IN SAID PAPER .