Air curtain
Description
Claims
The ornamental design for an air curtain, as shown and described.
Referenced Cited
U.S. Patent Documents
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- DuraSteel Aerial Titan-1,Mar. 5, 2016, Amazon, site visited Nov. 30, 2021: https://www.amazon.com/dp/B01CKQFGLE/ (Year: 2016).
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Patent History
Patent number: D945594
Type: Grant
Filed: Oct 26, 2020
Date of Patent: Mar 8, 2022
Inventors: Jeff DeBoer (Ann Arbor, MI), Matt Korich (Ypsilanti, MI), Dan Genord (South Lyon, MI)
Primary Examiner: Jack Reickel
Assistant Examiner: Bobby W Jones, II
Application Number: 29/756,083
Type: Grant
Filed: Oct 26, 2020
Date of Patent: Mar 8, 2022
Inventors: Jeff DeBoer (Ann Arbor, MI), Matt Korich (Ypsilanti, MI), Dan Genord (South Lyon, MI)
Primary Examiner: Jack Reickel
Assistant Examiner: Bobby W Jones, II
Application Number: 29/756,083
Classifications
Current U.S. Class:
Vent, Ductwork, Or Element Thereof (D23/393)