Granted Patent
Utility
US 5,700,372 · App. 08/523,526
Dialyzer with a constricted part made of a material capable of swelled by dializing liquid
Inventors:
Shingo Takesawa, Noriyuki Hosoya, Masatomi Sasaki
Patented Case
View Patent ↗
Granted: Dec 23, 1997
Filed: Sep 1, 1995
Inventors
Shingo Takesawa
Noriyuki Hosoya
Masatomi Sasaki
Assignee (at issue)
TERUMO KABUSHIKI KAISHA
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.