Granted Patent
Utility
US 4,966,699 · App. 07/335,543
Hollow fiber membrane fluid processor
Inventors:
Masatomi Sasaki, Hirotomo Morita, Yutaka Matsumoto
Patented Case
View Patent ↗
Granted: Oct 30, 1990
Filed: Apr 10, 1989
Inventors
Masatomi Sasaki
Hirotomo Morita
Yutaka Matsumoto
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.