Granted Patent
Utility
US 5,275,439 · App. 07/867,863
Hanging laminated folder
Inventors:
Robert E. Hawes, Jr., Cheryl Dellacroce-Steinberg, Eric Aaldenberg, James J. Lynch
Patented Case
View Patent ↗
Granted: Jan 4, 1994
Filed: Apr 10, 1992
Inventors
Robert E. Hawes, Jr.
Cheryl Dellacroce-Steinberg
Eric Aaldenberg
James J. Lynch
Assignee (at issue)
Esselte Pendaflex Corporation
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.