Granted Patent
Utility
US 6,737,446 · App. 10/336,555
Tertiary amino alkyl amide catalysts for improving the physical properties of polyurethane foams
Inventor:
Juan Jesus Burdeniuc
Patented Case
View Patent ↗
Granted: May 18, 2004
Filed: Jan 3, 2003
Inventor
Juan Jesus Burdeniuc
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.