Granted Patent
Utility
US 5,204,047 · App. 07/727,351
Method of using a mold closing apparatus for an injection molding machine
Inventor:
Walter Wohlrab
Patented Case
View Patent ↗
Granted: Apr 20, 1993
Filed: Jul 8, 1991
Inventor
Walter Wohlrab
Assignee (at issue)
KraussMaffei GmbH
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.