Granted Patent
Utility
US 6,450,789 · App. 09/767,763
Method and apparatus for inspecting vanes in a rotary pump
Inventor:
Timothy Henderson
Patented Case
View Patent ↗
Granted: Sep 17, 2002
Filed: Jan 23, 2001
Inventor
Timothy Henderson
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.