Granted Patent
Utility
US 5,425,604 · App. 08/142,397
Drilling tool
Inventors:
Gerhard Scheer, Rainer Perthen
Patented Case
View Patent ↗
Granted: Jun 20, 1995
Filed: Nov 19, 1993
Inventors
Gerhard Scheer
Rainer Perthen
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.