Granted Patent
Utility
US 5,222,003 · App. 07/612,891
Optical tape position sensing system for magnetic tape media in computer memory backup devices
Inventors:
Kevin Miller, Alan Richards, James A. Imthurn
Patented Case
View Patent ↗
Granted: Jun 22, 1993
Filed: Nov 13, 1990
Inventors
Kevin Miller
Alan Richards
James A. Imthurn
Assignee (at issue)
Colorado Memory Systems, 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.