Granted Patent
Utility
US 5,341,602 · App. 08/047,225
Apparatus for improved slurry polishing
Inventor:
Michael G. Foley
Patented Case
View Patent ↗
Granted: Aug 30, 1994
Filed: Apr 14, 1993
Inventor
Michael G. Foley
Assignee (at issue)
WILLIAMS INTERNATIONAL CO., L.L.C.
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.