Plastic film product

Details Plastic film product Plastic film product

1983-03-03

1985-09-24

Epstein, Henry F.

Stock material or miscellaneous articles

Hollow or container type article

Cellular material derived from plant or animal source

206632, 206820, 428 43, 428192, 428906, B65D 6530

Patent

active

045432791

ABSTRACT:
A plastic film product, such as a sealed bag, wound film or adhesive tape, has a plurality of random scratches or cuts having notches toward the other side of the film, formed along the edges thereof so as to be shallow and small enough to be invisible to the naked eye in order to reduce resistance to tearing perpendicular to the edges.

REFERENCES:
patent: 2508855 (1950-05-01), Brown
patent: 2817618 (1957-12-01), Hahn
patent: 3467250 (1969-09-01), D'Elia et al.
patent: 3511436 (1970-05-01), Kessler
patent: 3608815 (1971-09-01), Bunch
patent: 4125665 (1978-11-01), Bemmels et al.
patent: 4150184 (1979-04-01), Tesch
patent: 4407872 (1983-10-01), Horii

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