Granted Patent
Utility
US 4,879,821 · App. 07/094,483
Insole construction
Inventors:
Kenneth D. Graham, Kenton D. Geer, Katherine Bednarski
Patented Case
View Patent ↗
Granted: Nov 14, 1989
Filed: Sep 4, 1987
Inventors
Kenneth D. Graham
Kenton D. Geer
Katherine Bednarski
Assignee (at issue)
Hyde Athletic Industries, 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.