Granted Patent
Utility
US 6,589,030 · App. 09/883,221
Magnetically levitated pump apparatus
Inventor:
Takayoshi Ozaki
Patented Case
View Patent ↗
Granted: Jul 8, 2003
Filed: Jun 19, 2001
Inventor
Takayoshi Ozaki
Assignees (at issue)
NTN CORPORATION
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.