Collapsible portable document file

Description

FIG. 1 is a front, elevational view of a collapsible portable document file showing my new design;

FIG. 2 is a front, elevational view of FIG. 1 with four of the document holders removed for convenience of illustration;

FIG. 3 is a side, elevational view of FIG. 2, the opposite side being a mirror image;

FIG. 4 is a rear, elevational view of FIG. 2; and,

FIG. 5 is a top, plan view thereof.

Referenced Cited
U.S. Patent Documents
D260578 September 8, 1981 Cox
D264524 May 25, 1982 Merzon
3374041 March 1968 Davis
3904003 September 1975 Margerum
4020930 May 3, 1977 Weber
Patent History
Patent number: D347447
Type: Grant
Filed: Feb 5, 1990
Date of Patent: May 31, 1994
Inventor: Robert K. Isserstedt (London, SW7 2LQ)
Primary Examiner: Nelson C. Holtje
Assistant Examiner: Martie Thompson
Law Firm: Foley & Lardner
Application Number: 7/475,095
Classifications