Granted Patent
Utility
US 5,791,836 · App. 08/617,743
Tool head with external current supply
Inventor:
Thomas Feufel
Patented Case
View Patent ↗
Granted: Aug 11, 1998
Filed: Mar 11, 1996
Inventor
Thomas Feufel
Assignee (at issue)
Komet Praezisionswerkzeuge Robert Breuning GmbH
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.