Granted Patent
Utility
US 4,864,740 · App. 06/945,411
Disposable hygienic shoe insole and method for making the same
Inventor:
Barbara A. Oakley
Patented Case
View Patent ↗
Granted: Sep 12, 1989
Filed: Dec 22, 1986
Inventor
Barbara A. Oakley
Assignee (at issue)
Kimberly-Clark 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.