Granted Patent
Utility
US 6,201,662 · App. 09/337,059
Latent illuminance discrimination marker with reflective layer for data storage cartridges
Inventors:
Todd L. Graves, Klinton D. Washburn
Patented Case
View Patent ↗
Granted: Mar 13, 2001
Filed: Jun 21, 1999
Inventors
Todd L. Graves
Klinton D. Washburn
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.