ALEXANDRIA, Va., Nov. 6 -- United States Patent no. D1,101,043, issued on Nov. 4, was assigned to 2/90 Sign Systems (Grand Rapids, Mich.).
"Frame sign" was invented by Christopher J. Douma (Grand Rapids, Mich.) and Nathan Drews (Trufant, Mich.).
The patent was filed on Sept. 15, 2023, under Application No. D/912,266.
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