Granted Patent
Utility
US 6,521,673 · App. 09/685,309
Composition and method for preparing polyurethanes and polyurethane foams
Inventor:
Scott Brown
Patented Case
View Patent ↗
Granted: Feb 18, 2003
Filed: Oct 10, 2000
Inventor
Scott Brown
Assignee (at issue)
Polythane Systems, 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.