Granted Patent
Utility
US 5,857,787 · App. 08/712,175
Printer and motor having a balanced buck drive
Inventor:
Robert P. Ryan
Patented Case
View Patent ↗
Granted: Jan 12, 1999
Filed: Sep 11, 1996
Inventor
Robert P. Ryan
Assignee (at issue)
Prinntronix, Inc.
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.