Binder

Details Binder Binder

1983-11-28

1986-12-23

Bell, Paul A.

Books, strips, and leaves

Book, element thereof, or accessory therefor

Covers

281 31, 156292, 402 75, B42D 306, B42D 312, B32B 3100, F16C 1100

Patent

active

046308431

ABSTRACT:
A durable binder for holding papers and the like includes exterior and interior cover sheets that are attached to each other by heat sealing to define relatively rigid panels separated by hinge panels. The hinge panels are each characterized by a multitude of minute separate depressed areas in which the cover sheets are connected, the depressed areas being surrounded by intersecting raised areas. The depressed areas can be of varying depth and can define pockets for holding writing instruments and other objects.

REFERENCES:
patent: 2066992 (1937-01-01), Matson
patent: 2478132 (1949-08-01), Schade
patent: 2738297 (1956-03-01), Pfistershammer
patent: 2788041 (1957-04-01), Carver
patent: 3267980 (1966-08-01), Bird
patent: 3282764 (1966-11-01), Goettsch
patent: 4174909 (1979-11-01), Jahn
patent: 4212692 (1980-07-01), Rasen et al.
patent: 4296945 (1981-10-01), Pavlik
patent: 4305502 (1981-12-01), Gregory

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