Granted Patent
Utility
US 4,871,163 · App. 07/196,410
Paper control gate
Inventors:
Benzion Landa, Christopher J. Blake, Gerald R. Housworth, Shai Lior
Patented Case
View Patent ↗
Granted: Oct 3, 1989
Filed: May 20, 1988
Inventors
Benzion Landa
Christopher J. Blake
Gerald R. Housworth
Shai Lior
Assignee (at issue)
Savin Corporation
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.