Granted Patent
Utility
US 4,694,589 · App. 06/939,746
Elastomeric shoe innersole
Inventors:
James B. Sullivan, Richard B. Box
Patented Case
View Patent ↗
Granted: Sep 22, 1987
Filed: Dec 9, 1986
Inventors
James B. Sullivan
Richard B. Box
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.