Granted Patent
Utility
US 4,288,184 · App. 06/114,939
Boring tool
Inventor:
Helmut Veigel
Patented Case
View Patent ↗
Granted: Sep 8, 1981
Filed: Jan 24, 1980
Inventor
Helmut Veigel
Assignee (at issue)
Komet Stahlhalter-und Werkzeugfabrik 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.