Granted Patent
Utility
US 5,516,328 · App. 08/256,317
End surface polishing machine
Inventor:
Yasuo Kawada
Patented Case
View Patent ↗
Granted: May 14, 1996
Filed: Sep 6, 1994
Inventor
Yasuo Kawada
Assignee (at issue)
Seiko Electronic Components Ltd.
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.