Granted Patent
Utility
US 5,859,079 · App. 08/861,138
Polyurethane catalyst compositions for improving foam performance
Inventors:
Lisa Ann Mercando, Michael John Kimock, Michael Louie, Mark Leo Listemann
Patented Case
View Patent ↗
Granted: Jan 12, 1999
Filed: May 21, 1997
Inventors
Lisa Ann Mercando
Michael John Kimock
Michael Louie
Mark Leo Listemann
Assignee (at issue)
Air Products and Chemicals, Inc.
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.