Granted Patent
Utility
US 6,347,974 · App. 09/426,997
Automated polishing methods
Inventors:
William Keith Chandler, Nadir Shah
Patented Case
View Patent ↗
Granted: Feb 19, 2002
Filed: Oct 26, 1999
Inventors
William Keith Chandler
Nadir Shah
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.