Granted Patent
Utility
US 5,229,901 · App. 07/723,087
Side-by-side read/write heads with rotary positioner
Inventor:
Michael Mallary
Patented Case
View Patent ↗
Granted: Jul 20, 1993
Filed: Jun 28, 1991
Inventor
Michael Mallary
Assignee (at issue)
Digital Equipment Corporation
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.