Electronic ozonation unit

Description

FIG. 1 is a front, side and top perspective view of an electronic ozonation unit showing my new design;

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

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear 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
D218686 September 1970 Saito
D243720 March 15, 1977 Yajima
D308636 June 19, 1990 Dinand
D308939 July 3, 1990 Desgrippes
D323111 January 14, 1992 Restrepo
2555047 May 1951 Logue
4857240 August 15, 1989 Kearnes et al.
4992169 February 12, 1991 Izumiya
Patent History
Patent number: D335702
Type: Grant
Filed: Jul 2, 1991
Date of Patent: May 18, 1993
Assignee: Information Scan Technology, Inc. (Santa Clara, CA)
Inventor: Richard T. Chang (Saratoga, CA)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Lisa Lichtenstein
Law Firm: Burns, Doane, Swecker & Mathis
Application Number: 7/724,962
Classifications