Granted Patent
Utility
US 6,800,248 · App. 09/787,626
Method for cleaning a dialyzer hemodialysis system
Inventors:
Toshiaki Masuda, Yukari MASUDA
Patented Case
View Patent ↗
Granted: Oct 5, 2004
Filed: Mar 21, 2001
Inventors
Toshiaki Masuda
Yukari MASUDA
Assignee (at issue)
NIPRO 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.