Granted Patent
Utility
US 5,382,221 · App. 08/063,088
Automatic massager
Inventors:
Chi-Hsueh Hsu, Chih-Yes Shyu
Patented Case
View Patent ↗
Granted: Jan 17, 1995
Filed: May 18, 1993
Inventors
Chi-Hsueh Hsu
Chih-Yes Shyu
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.