Granted Patent
Utility
US 6,659,134 · App. 09/811,340
Peritoneal dialysis catheter
Inventor:
John A. Navis
Patented Case
View Patent ↗
Granted: Dec 9, 2003
Filed: Mar 16, 2001
Inventor
John A. Navis
Assignee (at issue)
John Navis
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.