Combined air filter and freshener

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Description

FIG. 1 is a perspective view taken from the top, side and one end of a combined air filter and freshener showing my new design;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is an elevational view taken from the end opposite that shown in FIG. 1; and

FIG. 4 is an elevational view taken from the side opposite that shown in FIG. 1. _

Referenced Cited
U.S. Patent Documents
D227669 July 1973 Mann
D234597 March 1975 Diachuk
D244856 June 28, 1977 Haufe
D248869 August 8, 1978 Risher
1794447 March 1931 Bothezat
2609888 September 1952 Beringer
2911291 November 1959 Engel
3273323 September 1966 Whitfield
3299620 January 1967 Hollingworth
3370403 February 1968 D'Elia et al.
3465504 September 1969 Oropeza et al.
3496703 February 1970 MacLeod et al.
3537239 November 1970 Dunmire
3668840 June 1972 Pierick
3722182 March 1973 Gilberlson
3747300 July 1973 Knudson
3828530 August 1974 Peters
3868896 March 1975 Doll et al.
3928008 December 1975 Petersen
4025325 May 24, 1977 Goodwin, Jr.
Patent History
Patent number: D258759
Type: Grant
Filed: Jan 15, 1979
Date of Patent: Mar 31, 1981
Inventor: Kenneth O. Johnson (St. Cloud, MN)
Primary Examiner: James R. Largen
Attorney: Richard O. Bartz
Application Number: 6/3,303
Classifications
Current U.S. Class: D23/146
International Classification: D2304;