Granted Patent
Utility
US 6,183,443 · App. 09/179,231
Expandable introducer sheath
Inventors:
William F. Kratoska, Andrew G. Richardson, Sew-Wah Tay, Scott P. Thome, Peter T. Keith
Patented Case
View Patent ↗
Granted: Feb 6, 2001
Filed: Oct 26, 1998
Inventors
William F. Kratoska
Andrew G. Richardson
Sew-Wah Tay
Scott P. Thome
Peter T. Keith
Assignee (at issue)
Scimed Life Systems, 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.