Granted Patent
Utility
US 6,425,883 · App. 09/372,476
Method and apparatus for controlling vacuum as a function of ultrasonic power in an ophthalmic phaco aspirator
Inventors:
Alex Urich, Michael Curtis
Patented Case
View Patent ↗
Granted: Jul 30, 2002
Filed: Aug 11, 1999
Inventors
Alex Urich
Michael Curtis
Assignee (at issue)
Circuit Tree Medical, 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.