Granted Patent
Utility
US 5,196,897 · App. 07/731,844
High speed duplex printing mechanism having plural reversing pathways
Inventor:
Jeffrey L. Trask
Patented Case
View Patent ↗
Granted: Mar 23, 1993
Filed: Jul 16, 1991
Inventor
Jeffrey L. Trask
Assignee (at issue)
Hewlett-Packard Company, L.P.
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.