Granted Patent
Utility
US 5,989,241 · App. 09/046,451
Drainage catheter apparatus
Inventors:
Michael Plishka, Manfred Mittermeier
Patented Case
View Patent ↗
Granted: Nov 23, 1999
Filed: Mar 23, 1998
Inventors
Michael Plishka
Manfred Mittermeier
Assignee (at issue)
Manan Medical Products, 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.