Granted Patent
Utility
US 5,971,836 · App. 08/520,379
Grinding machine
Inventors:
Toshiharu Kogure, Katsura Tomotaki, Yoshikazu Kojima, Jun Osanai
Patented Case
View Patent ↗
Granted: Oct 26, 1999
Filed: Aug 29, 1995
Inventors
Toshiharu Kogure
Katsura Tomotaki
Yoshikazu Kojima
Jun Osanai
Assignee (at issue)
Seiko Seiki Kabushiki Kaisha
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.