US D1,029,239 S
Retractable backflush handpiece
Niels Alexander Abt, Winterthur (CH); Reto Grüebler, Greifensee (CH); Simon Nicola Kunz, Zurich (CH); Niccolo Maschio, Winterthur (CH); and Christoph Siegenthaler, Eschenz (CH)
Assigned to Alcon Inc., Fribourg (CH)
Filed by Alcon Inc., Fribourg (CH)
Filed on Dec. 7, 2021, as Appl. No. 29/790,665.
Term of patent 15 Years
LOC (14) Cl. 24 - 02
U.S. Cl. D24—112
OG exemplary drawing
 
The ornamental design of a retractable backflush handpiece, as shown and described.