Granted Patent
Utility
US 5,848,992 · App. 08/814,746
Superfascial surgical access device
Inventors:
Charles C. Hart, Eric Lee, Eduardo Chi-Sing
Patented Case
View Patent ↗
Granted: Dec 15, 1998
Filed: Mar 7, 1997
Inventors
Charles C. Hart
Eric Lee
Eduardo Chi-Sing
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.