Granted Patent
Utility
US 4,974,342 · App. 07/373,760
Inner sole for shoe
Inventor:
Toshimitsu Nakamura
Patented Case
View Patent ↗
Granted: Dec 4, 1990
Filed: Jun 30, 1989
Inventor
Toshimitsu Nakamura
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.