Granted Patent
Utility
US 6,832,819 · App. 10/018,353
Method and device for producing brushes and brushes produced using the same
Inventor:
Georg Weihrauch
Patented Case
View Patent ↗
Granted: Dec 21, 2004
Filed: Apr 17, 2002
Inventor
Georg Weihrauch
Assignee (at issue)
Coronet-Werke 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.