Granted Patent
Utility
US 5,672,172 · App. 08/468,717
Surgical instrument with ultrasound pulse generator
Inventor:
Paul F. Zupkas
Patented Case
View Patent ↗
Granted: Sep 30, 1997
Filed: Jun 6, 1995
Inventor
Paul F. Zupkas
Assignee (at issue)
Vros Corporation
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.