Granted Patent
Utility
US 5,486,557 · App. 08/291,170
Furfuryl alcohol-formaldehyde resins
Inventor:
Denis W. Akerberg
Patented Case
View Patent ↗
Granted: Jan 23, 1996
Filed: Aug 16, 1994
Inventor
Denis W. Akerberg
Assignee (at issue)
QO 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.