Granted Patent
Utility
US 5,184,664 · App. 07/723,076
Mold for lead casting
Inventors:
Yuji Hayashi, Masahiro Ito, Hiroyoshi Yoshida, Hiroyoshi SHIBATA
Patented Case
View Patent ↗
Granted: Feb 9, 1993
Filed: Jun 28, 1991
Inventors
Yuji Hayashi
Masahiro Ito
Hiroyoshi Yoshida
Hiroyoshi SHIBATA
Assignees (at issue)
Yuasa Battery Co., Ltd.
Kobe Cast Iron Works, 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.