Three section envelope blank

- AB Sture Ljungdahl
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Description

FIG. 1 is a plan view in flat unfolded state, of a three section envelope blank, showing my new design the rear surface which is plain;

FIG. 2 is a plan view of a modification thereof in which sections for printed matter are shown in a portion thereof;

FIG. 3 is a perspective view of the three section envelope blank in a partial stage of folding thereof; and

FIG. 4 is a perspective view of the completely folded three section envelope blank.

Referenced Cited
U.S. Patent Documents
2985464 May 1961 McFarland
3837565 September 1974 Johnson
3977597 August 31, 1976 Wise et al.
Patent History
Patent number: D263315
Type: Grant
Filed: Feb 2, 1979
Date of Patent: Mar 9, 1982
Assignee: AB Sture Ljungdahl (Nybro)
Inventor: Nils E. Petersson (Nybro)
Primary Examiner: George P. Word
Law Firm: Hane, Roberts, Spiecens & Cohen
Application Number: 6/8,785
Classifications
Current U.S. Class: Envelope (D19/3)
International Classification: D1901;