Paper products having perforations and perforate pattern

Details Paper products having perforations and perforate pattern Paper products having perforations and perforate pattern

1992-02-14

1993-03-30

Thomas, Alexander S.

Stock material or miscellaneous articles

Sheet, web, or layer weakened to permit separation through...

428136, B32B 310

Patent

active

051982765

ABSTRACT:
Paper products having perforations and perforate pattern for use in a blank of paper or synthetic paper and an envelope, or the like.
The paper products comprises a paper, a vertical notch provided at upper end portion of the paper, and a plurality of Y shaped notches, which are provided in such a manner that first Y shaped notches have three notches, upper ends of upper opened two notches are positioned at the lower end of the notch on a horizontal line, and upper ends of upper opened two notches of second Y shaped notches are positioned at the lower end of the notch on a horizontal line, and so on until a lower end portion of the paper.

REFERENCES:
patent: 2266958 (1941-12-01), Corbin
patent: 2967010 (1961-01-01), Cuffey et al.
patent: 3227359 (1966-01-01), Hanlon

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