The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 25, 1978
Filed:
Apr. 11, 1977
Applicant:
Inventor:
Donald J Steidinger, Barrington, IL (US);
Assignee:
Wallace Business Forms, Inc., Hillside, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B31B / ;
U.S. Cl.
CPC ...
93 6 / ; 156226 ;
Abstract
A method of making continuous envelope structure wherein a continuous ply ultimately constituting the backs of a series of envelopes has united thereto a plurality of ply segments, each ply segment ultimately constituting the front and flap of an envelope in the series, and wherein at least a major portion of the flap of each ply segment overlies the front of an adjacent ply segment, and wherein each ply segment and the continuous ply are transversely perforated after assembly.