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Patent
   D439646
Priority
May 17 2000
Filed
May 17 2000
Issued
Mar 27 2001
Expiry
Mar 27 2015
Inventors
McMahon, M…
Assg.orig
Assg.curr
Entity
unknown
Referenced by
2
References
3
Maint.:
n/a
The ornamental design for an air filter cleaning device, as shown and described.

FIG. 1 is a perspective view of an air filter cleaning device showing my new design;

FIG. 2 is a side elevational view thereof, all the sides being identical to that shown;

FIG. 3 is a top plan view thereof; and,

FIG. 4 is a bottom plan view thereof.
INVENTORS:

McMahon, Michael R.

THIS PATENT IS REFERENCED BY THESE PATENTS:
Patent Priority Assignee Title
6588057, Aug 20 2001 Air filter cleaning device
D765322, Aug 10 2011 GITA GREEN, INC Apparatus for cleaning air filters
THIS PATENT REFERENCES THESE PATENTS:
Patent Priority Assignee Title
3733639,
3958296, Feb 19 1975 Air filter cleaner
5182832, Apr 27 1992 Air filter cleaning apparatus
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