Granted Patent
Utility
US 6,091,563 · App. 08/936,970
Latent illuminance discrimination marker system for data storage cartridges
Inventors:
Fred Charles Thomas, III, Glenn B. Dixon
Patented Case
View Patent ↗
Granted: Jul 18, 2000
Filed: Sep 26, 1997
Inventors
Fred Charles Thomas, III
Glenn B. Dixon
Assignee (at issue)
IO-Mega Holding 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.