Patent
   D966483
Priority
Apr 28 2020
Filed
Apr 28 2020
Issued
Oct 11 2022
Expiry
Oct 11 2037
Assg.orig
Entity
unknown
0
7
n/a
The ornamental design for a prefilter, as shown and described.

FIG. 1 is a front perspective view of the prefilter;

FIG. 2 is a front view of the prefilter;

FIG. 3 is a back (rear) view of the prefilter;

FIG. 4 is a left side view of the prefilter;

FIG. 5 is a right side view of the prefilter;

FIG. 6 is a top view of the prefilter;

FIG. 7 is a bottom view of the prefilter; and,

FIG. 8 is a view showing the prefilter relationship to a potential primary filter.

The broken lines shown in the figures are for the purpose of illustrating environmental structure and form no part of the claimed design.

Brown, James C., Bruce, Jerry A.

Patent Priority Assignee Title
Patent Priority Assignee Title
20110225939,
20160136560,
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20180015404,
D605274, Oct 19 2006 Nitto Denko Corporation Air filter
D754315, Nov 04 2013 iRobot Corporation Filter
D898177, Nov 29 2019 SHENZHEN SHENYUANXIN TECHNOLOGY CO., LTD. Air filter
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