Granted Patent
Utility
US 4,516,398 · App. 06/617,146
Method of use of an ultrasonic surgical pre-aspirator having a orifice by-pass
Inventor:
David G. Wuchinich
Patented Case
View Patent ↗
Granted: May 14, 1985
Filed: Jun 5, 1984
Inventor
David G. Wuchinich
Assignee (at issue)
Cooper LaserSonics, 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.