Granted Patent
Utility
US 5,328,513 · App. 08/086,873
Apparatus for producing dies for extruding ceramic honeycomb bodies
Inventors:
Kazuo Suzuki, Kenji Arai, Hiroshi Ueda
Patented Case
View Patent ↗
Granted: Jul 12, 1994
Filed: Jul 8, 1993
Inventors
Kazuo Suzuki
Kenji Arai
Hiroshi Ueda
Assignee (at issue)
NGK INSULATORS, 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.