USD1105896, valid through Dec. 2040! Foundation Patents Inventors’ Active Fire Door Products, a manufacturing company in Concord, California who manufactures retrofit solutions to bring commercial fire doors and frames into compliance with strict NFPA safety standards, patents the revolutionary SNAP IN FRAME PLUG (USD1105896, valid through Dec. 2040).
It’s a novel Snap-In Frame Plug: Adjustable and snap-in plugs used to seal open holes in hollow metal doors and frames. Congrats to Joseph Nehi IV & the whole Active Fire Door Team!!!!
https://thompsonpatentlaw.com/different-types-of-patents/
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