Granted Patent
Utility
US 5,135,486 · App. 07/575,976
Self-venting balloon dilitation catheter
Inventors:
Michael J. Eberle, Tim Cortez
Patented Case
View Patent ↗
Granted: Aug 4, 1992
Filed: Aug 31, 1990
Inventors
Michael J. Eberle
Tim Cortez
Assignee (at issue)
EndoSonics Corporation
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.