Upright vacuum cleaner filter

Skip to: Description  ·  References Cited  · Patent History  ·  Patent History
Description

FIG. 1 is a front elevational view of a upright vacuum cleaner filter showing my new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
D143421 January 1946 Gasner
D202611 October 1965 Gantz
D209502 December 1967 Greene et al.
D214811 July 1969 Gaundry
D240698 July 1976 Durkee
4678485 July 7, 1987 Finley et al.
4960446 October 2, 1990 Werner et al.
Patent History
Patent number: D343263
Type: Grant
Filed: Feb 28, 1992
Date of Patent: Jan 11, 1994
Inventor: Pravindra Singh (West Sacramento, CA)
Primary Examiner: Ruth McInroy
Attorney: S. Michael Bender
Application Number: 7/841,746