Patent
   D831182
Priority
Jun 20 2016
Filed
Jun 20 2016
Issued
Oct 16 2018
Expiry
Oct 16 2033

TERM.DISCL.
Assg.orig
Entity
unknown
7
14
n/a
The ornamental design for an air filter, as shown and described.

FIG. 1 is a perspective view showing the new design for an air filter.

FIG. 2 is a top view thereof;

FIG. 3 is a bottom view thereof;

FIG. 4 is a side view thereof;

FIG. 5 is a side view thereof;

FIG. 6 is a perspective view showing the new design for an air filter;

FIG. 7 is an enlarged view of a portion of the air filter of FIG. 6;

FIG. 8 is a top thereof; and,

FIG. 9 is an enlarged view of a portion of the air filter of FIG. 8.

The claimed area of the air filter is illustrated with the color designation for the color yellow. The thicker dash-dash broken lines define the boundaries of the claimed design and form no part thereof.

The portions in the drawing views shown in broken lines form no part of the claimed design.

Gregerson, Glen O., Lise, Jonathan M.

Patent Priority Assignee Title
D877876, Sep 07 2018 3M Innovative Properties Company Three dimensional filter frame
D878533, Jan 10 2018 Filtration units
D888216, Nov 20 2018 Access Business Group International LLC Air treatment system filter
D898177, Nov 29 2019 SHENZHEN SHENYUANXIN TECHNOLOGY CO., LTD. Air filter
D923165, Nov 17 2020 SHENZHEN SHI NUO WEI DA TECHNOLOGY CO., LTD Car air filter
D936198, Jan 22 2020 DBG Group Investments, LLC Ozone plate for an air purification device
D972698, Jun 20 2016 3M Innovative Properties Company Air filter
Patent Priority Assignee Title
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Jun 20 20163M Innovative Properties Company(assignment on the face of the patent)
Jul 11 2016GREGERSON, GLEN O 3M Innovative Properties CompanyASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0391990512 pdf
Jul 11 2016LISE, JONATHAN M 3M Innovative Properties CompanyASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0391990512 pdf
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