Granted Patent
Utility
US 5,378,153 · App. 07/832,422
High performance acoustical cleaning apparatus for teeth
Inventors:
David Giuliani, Roy W. Martin
Patented Case
View Patent ↗
Granted: Jan 3, 1995
Filed: Feb 7, 1992
Inventors
David Giuliani
Roy W. Martin
Assignee (at issue)
Gemtech
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.