Granted Patent
Utility
US 6,459,545 · App. 09/524,147
Use of matte materials to reduce signal pollution in cartridge detection circuitry
Inventors:
Todd L. Graves, Wayne A. Sumner
Patented Case
View Patent ↗
Granted: Oct 1, 2002
Filed: Mar 14, 2000
Inventors
Todd L. Graves
Wayne A. Sumner
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.