Granted Patent
Utility
US 5,454,921 · App. 08/121,233
Electrolytic combined processing machine
Inventors:
Toshiharu Kogure, Katsura Tomotaki, Shinichi Nomura
Patented Case
View Patent ↗
Granted: Oct 3, 1995
Filed: Sep 14, 1993
Inventors
Toshiharu Kogure
Katsura Tomotaki
Shinichi Nomura
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.