Granted Patent
Utility
US 5,243,473 · App. 07/740,791
Automatic helical scan head drum calibration and track timing generation
Inventor:
David R. Lee
Patented Case
View Patent ↗
Granted: Sep 7, 1993
Filed: Aug 6, 1991
Inventor
David R. Lee
Assignee (at issue)
R-Byte, 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.