Granted Patent
Utility
US 4,411,579 · App. 06/301,775
Ejection means for removing a hollow article from machine in which the article is made
Inventors:
Robert J. Grone, Leonard R. Schnell
Patented Case
View Patent ↗
Granted: Oct 25, 1983
Filed: Sep 14, 1981
Inventors
Robert J. Grone
Leonard R. Schnell
Assignee (at issue)
Cincinnati Milacron Industries, 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.