Portable air filter

- Stackhouse Associates
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Description

FIG. 1 is a perspective view of a portable air filter illustrating our new design;

FIG. 2 is a front elevational view thereof, on a reduced scale;

FIG. 3 is a rear elevational view thereof, on a reduced scale;

FIG. 4 is a top plan view thereof, on a reduced scale;

FIG. 5 is a right side elevational view thereof, on a reduced scale;

FIG. 6 is a left side elevational view thereof, on a reduced scale; and

FIG. 7 is a bottom plan view thereof, on a reduced scale;

Referenced Cited
U.S. Patent Documents
D271338 November 8, 1983 Dukowski
D295216 April 12, 1988 Morris et al.
4786295 November 22, 1988 Newman et al.
4838910 June 13, 1989 Stollenwerk et al.
Other references
  • Industrial Design, 2/1955, p. 96, Raytheon "Micronaire" Room Air Cleaner.
Patent History
Patent number: D304854
Type: Grant
Filed: Apr 27, 1988
Date of Patent: Nov 28, 1989
Assignee: Stackhouse Associates (El Segundo, CA)
Inventors: Wyman H. Stackhouse (Manhattan Beach, CA), Ian M. Williamson (Redondo Beach, CA)
Primary Examiner: James M. Gandy
Assistant Examiner: Lisa Lichtenstein
Law Firm: Singer & Singer
Application Number: 7/187,075
Classifications
Current U.S. Class: Filter (D23/365)