Air duct
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The portions of the figures shown in broken lines (either in dash-dash broken line format or in dot-dash broken line format) form no part of the claimed design. The portions shown in dash-dash broken line format comprise unclaimed environmental structure. The lines shown in dot-dash broken line format identify boundaries between unclaimed and claimed region(s).
Claims
The ornamental design for an air duct, as shown and described.
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Type: Grant
Filed: Dec 11, 2018
Date of Patent: Sep 1, 2020
Assignee: N.P.S. Company, LLC (Hurricane, UT)
Inventors: Scott T. Nielson (St. George, UT), Michael O. Nielson (Hurricane, UT), Junjie Dai (Shanghai), Jinbao Chen (Yangzhou)
Primary Examiner: Barbara Fox
Assistant Examiner: Jamaal Rasheed
Application Number: 29/673,069