Granted Patent
Utility
US 6,433,034 · App. 09/989,451
Flexible polyurethane foams
Inventors:
Jan W. Leenslag, Anthony Cunningham, Berend Eling
Patented Case
View Patent ↗
Granted: Aug 13, 2002
Filed: Nov 21, 2001
Inventors
Jan W. Leenslag
Anthony Cunningham
Berend Eling
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.