Granted Patent
Utility
US 6,755,719 · App. 10/385,185
End surface polishing device and end surface polishing method
Inventors:
Kisaburou Yoshida, Kouji Minami
Patented Case
View Patent ↗
Granted: Jun 29, 2004
Filed: Mar 10, 2003
Inventors
Kisaburou Yoshida
Kouji Minami
Assignee (at issue)
SEIKO INSTRUMENTS INC.
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.