Granted Patent
Utility
US 5,459,170 · App. 08/223,929
Polyurethane foams
Inventors:
Gerhard Jozef Bleys, Viviane Gertrude Johanna Neyens
Patented Case
View Patent ↗
Granted: Oct 17, 1995
Filed: Apr 6, 1994
Inventors
Gerhard Jozef Bleys
Viviane Gertrude Johanna Neyens
Assignee (at issue)
IMPERIAL CHEMICAL INDUSTRIES LIMITED
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.