3M Innovative Properties Assigned Patent for Filtering Face-Piece Respirator Having Folded Flange
Copyright © Targeted News Service, 2021
2021-09-18
Copyright © Targeted News Service, 2021
2021-09-18
ALEXANDRIA, Va., Sept. 18 -- 3M Innovative Properties, St. Paul, Minnesota, has been assigned a patent (No. 11,116,998, initially filed Dec. 27, 2012) developed by Dean R. Duffy, Woodbury, Minnesota, for "filtering face-piece respirator having folded flange."
The full-text of the patent can be found at https://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=11,116,998.PN.&OS=PN/11,116,998&RS=PN/11,116,998 . . .
The full-text of the patent can be found at https://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=11,116,998.PN.&OS=PN/11,116,998&RS=PN/11,116,998 . . .