Portable water filter

Description

FIG. 1 is a bottom front perspective view of the portable water filter showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a right elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a left elevational view thereof;

FIG. 6 is a top plan view thereof; and

FIG. 7 is a bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
2436077 February 1948 Robertson
2566371 September 1951 Quinn
4477347 October 16, 1984 Sylva
Patent History
Patent number: D309487
Type: Grant
Filed: Nov 4, 1988
Date of Patent: Jul 24, 1990
Inventor: James L. Lieberman (Boulder, CO)
Primary Examiner: Wallace R. Burke
Assistant Examiner: M. H. Tung
Attorney: Donald W. Margolis
Application Number: 7/266,991
Classifications
Current U.S. Class: Filter Or Strainer (2) (D23/209)