Granted Patent
Utility
US 6,589,161 · App. 10/041,907
Constriction device including tear resistant structures
Inventor:
Dean Corcoran
Patented Case
View Patent ↗
Granted: Jul 8, 2003
Filed: Oct 18, 2001
Inventor
Dean Corcoran
Assignee (at issue)
Spiration, 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.