Granted Patent
Utility
US 4,880,844 · App. 07/199,499
Flame laminatable polyether urethane foam
Inventor:
Gerald Fesman
Patented Case
View Patent ↗
Granted: Nov 14, 1989
Filed: May 27, 1988
Inventor
Gerald Fesman
Assignee (at issue)
Akzo America 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.