Granted Patent
Utility
US 6,602,250 · App. 09/774,442
Echogenic wire knife
Inventors:
John A. Karpiel, Donagh O'Sullivan
Patented Case
View Patent ↗
Granted: Aug 5, 2003
Filed: Jan 31, 2001
Inventors
John A. Karpiel
Donagh O'Sullivan
Assignees (at issue)
Wilson-Cook Medical Inc.
Cook Ireland Limited
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.