US D1,028,177 S
Control valve
Daniel James Perz, Windsor (CA)
Assigned to Maxitrol Company, Southfield, MI (US)
Filed by Maxitrol Company, Southfield, MI (US)
Filed on Jul. 7, 2021, as Appl. No. 29/798,277.
Term of patent 15 Years
LOC (14) Cl. 23 - 01
U.S. Cl. D23—233
OG exemplary drawing
 
The ornamental design for a control valve, as shown and described.