Granted Patent
Utility
US 5,658,148 · App. 08/429,083
Dental laser brushing or cleaning device
Inventors:
Wolfgang Neuberger, Walter Cecchetti
Patented Case
View Patent ↗
Granted: Aug 19, 1997
Filed: Apr 26, 1995
Inventors
Wolfgang Neuberger
Walter Cecchetti
Assignee (at issue)
CeramOptec Industries Inc.
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.