Granted Patent
Utility
US 5,052,909 · App. 07/616,752
Energy-conserving injection molding machine
Inventors:
Ronald A. Hertzer, Edward A. Chorey, Harold J. Faig
Patented Case
View Patent ↗
Granted: Oct 1, 1991
Filed: Nov 16, 1990
Inventors
Ronald A. Hertzer
Edward A. Chorey
Harold J. Faig
Assignee (at issue)
Cincinnatti Milacron Inc.
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.