Granted Patent
Utility
US 5,135,489 · App. 07/335,927
Pre-slit injection site and tapered cannula
Inventors:
Steven C. Jepson, Thomas E. Dudar, David J. Shepherd, Michael Minailo, Brent Noblitt, Mark G. Gordon
Patented Case
View Patent ↗
Granted: Aug 4, 1992
Filed: Apr 10, 1989
Inventors
Steven C. Jepson
Thomas E. Dudar
David J. Shepherd
Michael Minailo
Brent Noblitt
Mark G. Gordon
Assignee (at issue)
Baxter International 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.