Perforated paper products

Details Perforated paper products Perforated paper products

1999-01-07

2000-11-14

Thomas, Alexander S.

Stock material or miscellaneous articles

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

462 55, 462 63, B32B 310

Patent

active

061467316

ABSTRACT:
A legal pad having a perforated tear line in which the slits located immediately adjacent the ends of the tear line, i.e. adjacent the central portion of the side edges of the pad, are longer than the slits making up the perforated tear lines, is provided in one aspect of the invention. In another aspect of the invention, a spiral notebook has an oval or tear shaped notch formed immediately inboard of the top edge of the individual paper sheets, and aligned with the perforation line of the spiral bound notebook. In a preferred embodiment of the invention, the perforation line comprises a plurality of microperforations not readily visible to the user, while the notch adjacent to the end is significantly larger than the microperforations, so as to also serve as a perforation indicator, and tear starter.

REFERENCES:
patent: 3706626 (1972-12-01), Smith et al.
patent: 5198276 (1993-03-01), Nakajima
patent: 5557311 (1996-09-01), Perrington et al.
patent: 5704566 (1998-01-01), Schutz et al.

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