Granted Patent
Utility
US 5,503,668 · App. 08/278,668
Corrugating adhesive incorporating solubilized cellulosic fiber and polyvinyl alcohol
Inventors:
J. E. Todd Giesfeldt, Larry E. Fitt, James J. Pienkowski, Jack R. Wallace
Patented Case
View Patent ↗
Granted: Apr 2, 1996
Filed: Jul 21, 1994
Inventors
J. E. Todd Giesfeldt
Larry E. Fitt
James J. Pienkowski
Jack R. Wallace
Assignee (at issue)
CPC International, 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.