Granted Patent
Utility
US 4,937,593 · App. 07/380,234
Print head position control system
Inventor:
Danny J. Prats
Patented Case
View Patent ↗
Granted: Jun 26, 1990
Filed: Jul 14, 1989
Inventor
Danny J. Prats
Assignee (at issue)
Apple Computer 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.