Granted Patent
Utility
US 6,582,286 · App. 09/783,879
End face polishing apparatus
Inventors:
Koji Minami, Katsuaki Kita
Patented Case
View Patent ↗
Granted: Jun 24, 2003
Filed: Feb 15, 2001
Inventors
Koji Minami
Katsuaki Kita
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.