Granted Patent
Utility
US 6,604,918 · App. 10/164,059
Turbomolecular pump
Inventor:
Miyako Komoriya
Patented Case
View Patent ↗
Granted: Aug 12, 2003
Filed: Jun 6, 2002
Inventor
Miyako Komoriya
Assignee (at issue)
SEIKO INSTRUMENTS INC.
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.