Granted Patent
Utility
US 4,386,708 · App. 06/233,946
Container reject system
Inventor:
Walter J. Sieverin
Patented Case
View Patent ↗
Granted: Jun 7, 1983
Filed: Feb 12, 1981
Inventor
Walter J. Sieverin
Assignee (at issue)
American Can Company
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.