Granted Patent
Utility
US 6,513,139 · App. 10/041,537
Digital data recording channel
Inventor:
Martin D. Gray
Patented Case
View Patent ↗
Granted: Jan 28, 2003
Filed: Jan 7, 2002
Inventor
Martin D. Gray
Assignee (at issue)
OVERLAND STORAGE, 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.