Granted Patent
Utility
US 5,925,013 · App. 08/824,849
Irrigation and evacuation cannula
Inventors:
Donald D. Exline, William A. Pierce
Patented Case
View Patent ↗
Granted: Jul 20, 1999
Filed: Mar 26, 1997
Inventors
Donald D. Exline
William A. Pierce
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.