Granted Patent
Utility
US 6,478,766 · App. 09/625,294
Ultrasound handpiece
Inventor:
James Y. Chon
Patented Case
View Patent ↗
Granted: Nov 12, 2002
Filed: Jul 25, 2000
Inventor
James Y. Chon
Assignee (at issue)
Alcon, 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.