Carpet cleaning tool

Description

FIG. 1 is a bottom perspective view of a carpet cleaning tool, showing my new design;

FIG. 2 is a top perspective view thereof;

FIG. 3 is a sectional view, taken along lines 3--3 of FIG. 4;

FIG. 4 is a bottom plan view; and

FIG. 5 is a top plan view.

Referenced Cited
U.S. Patent Documents
D211812 July 1968 Brubaker et al.
D213016 December 1968 Kleemeier et al.
D217736 June 1970 Marsee
D251539 April 10, 1979 Kupperman et al.
D272235 January 17, 1984 Orlando
1849370 March 1932 Fuhr
2336357 December 1943 Hixson
2516491 July 1950 Swastek
2532429 December 1950 Sparkman
3838474 October 1974 Erickson
4566148 January 28, 1986 Rolin
Foreign Patent Documents
25207 February 1952 FIX
1414658 September 1965 FRX
2187945 September 1987 GBX
Patent History
Patent number: D318545
Type: Grant
Filed: Jan 14, 1988
Date of Patent: Jul 23, 1991
Assignee: Shell Chemical (Australia) Proprietary Limited (Melbourne)
Inventor: James E. Calnin (Glen Waverley)
Primary Examiner: James R. Largen
Assistant Examiner: Doris V. Coles
Law Firm: Darby & Darby
Application Number: 7/143,693