Granted Patent
Utility
US 6,740,687 · App. 10/219,043
Latex replacement polyurethane foams with improved flame retardancy
Inventors:
Beat Niederoest, Andrew Thompson, Joseph W. Lovette, Chiu Y. Chan
Patented Case
View Patent ↗
Granted: May 25, 2004
Filed: Aug 14, 2002
Inventors
Beat Niederoest
Andrew Thompson
Joseph W. Lovette
Chiu Y. Chan
Assignee (at issue)
FOAMEX L.P.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.