Granted Patent
Utility
US 6,641,373 · App. 10/082,741
Gas compressor with variably biased vanes
Inventor:
Keiichi Morita
Patented Case
View Patent ↗
Granted: Nov 4, 2003
Filed: Feb 22, 2002
Inventor
Keiichi Morita
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.