Granted Patent
Utility
US 4,844,633 · App. 07/211,030
Active paper drop mechanism for a printer
Inventor:
Michael D. Greenberg
Patented Case
View Patent ↗
Granted: Jul 4, 1989
Filed: Jun 24, 1988
Inventor
Michael D. Greenberg
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.