ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,421,705, issued on Sept. 23.
"Sink and bath drain strainer" was invented by John Wirtanen (Elyria, Ohio).
According to the abstract* released by the U.S. Patent & Trademark Office: "A drain strainer includes a drain piece having a hollow body and an internal female thread, and a cap having an external male thread for mating with the internal female thread."
The patent was filed on June 12, 2023, under Application No. 18/332,929.
*For further information, including images, charts and tables, please visit: http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=1&f=G&l=50&co1=AND&d=PTXT&s1=12421705&OS=12421705&RS=12421705
Discl...