Granted Patent
Utility
US 5,059,113 · App. 07/505,600
Injection molding apparatus
Inventors:
Michio Ito, Hiroshi Yoshida
Patented Case
View Patent ↗
Granted: Oct 22, 1991
Filed: Apr 6, 1990
Inventors
Michio Ito
Hiroshi Yoshida
Assignee (at issue)
Yoshida Kogyo K.K.
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.