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Patent
   D785153
Priority
Mar 10 2014
Filed
Apr 11 2016
Issued
Apr 25 2017
Expiry
Apr 25 2032
Inventors
Belton, An…
Assg.orig
Illinois T…
Assg.curr
Illinois T…
Entity
unknown
Referenced by
0
References
138
Maint.:
n/a
The ornamental design for an air filtration device, as shown and described.

FIG. 1 is a top front right perspective view of an air filtration device of our new design.

FIG. 2 is a top back right perspective view thereof.

FIG. 3 is a front side elevational view thereof.

FIG. 4 is a back side elevational view thereof.

FIG. 5 is a right side elevational view thereof.

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines showing parts of the drawings are included to illustrate use and environment and form no part of the claimed design.
INVENTORS:

Belton, Antonio J., Francis, Ryan L., McPhilliamy, Stephen J., White, Jr., John S.

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ASSIGNMENT RECORDS    Assignment records on the USPTO
/////
Executed onAssignorAssigneeConveyanceFrameReelDoc
Mar 12 2014FRANCIS, RYAN L Illinois Tool Works IncASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0383120637 pdf
Mar 13 2014MCPHILLIAMY, STEPHEN J Illinois Tool Works IncASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0383120637 pdf
Mar 13 2014BELTON, ANTONIO J Illinois Tool Works IncASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0383120637 pdf
Mar 13 2014WHITE, JOHN S , JR Illinois Tool Works IncASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0383120637 pdf
Apr 11 2016Illinois Tool Works Inc.(assignment on the face of the patent)
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