Granted Patent
Utility
US 4,853,808 · App. 07/115,124
Linear actuator for disc drive
Inventor:
Frank T. Lutz
Patented Case
View Patent ↗
Granted: Aug 1, 1989
Filed: Oct 30, 1987
Inventor
Frank T. Lutz
Assignee (at issue)
Cardiff Technology 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.