Granted Patent
Utility
US 5,289,636 · App. 07/931,857
Electric shaving apparatus
Inventors:
Reinhold Eichhorn, Gerhard Schafer, Klaus Oprach, Sigrun Hickel, Helmut Durr
Patented Case
View Patent ↗
Granted: Mar 1, 1994
Filed: Aug 18, 1992
Inventors
Reinhold Eichhorn
Gerhard Schafer
Klaus Oprach
Sigrun Hickel
Helmut Durr
Assignee (at issue)
The Braun Corporation
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.