Granted Patent
Utility
US 6,205,670 · App. 09/371,873
Bore centering device
Inventor:
James Webb
Patented Case
View Patent ↗
Granted: Mar 27, 2001
Filed: Aug 6, 1999
Inventor
James Webb
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.