Granted Patent
Utility
US 4,962,841 · App. 07/316,979
Opposite direction transfer device
Inventor:
Donald H. Kloosterhouse
Patented Case
View Patent ↗
Granted: Oct 16, 1990
Filed: Feb 28, 1989
Inventor
Donald H. Kloosterhouse
Assignee (at issue)
Ermanco Incorporated
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.