Granted Patent
Utility
US 4,884,338 · App. 07/220,159
Electric shaver improvement
Inventor:
John V. Stewart
Patented Case
View Patent ↗
Granted: Dec 5, 1989
Filed: Jul 18, 1988
Inventor
John V. Stewart
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.