Granted Patent
Utility
US 6,697,212 · App. 10/161,683
Cartridge magnetic tape device having magnetic head cleaning mechanism
Inventor:
Manabu Tsuchiya
Patented Case
View Patent ↗
Granted: Feb 24, 2004
Filed: Jun 5, 2002
Inventor
Manabu Tsuchiya
Assignee (at issue)
NEC 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.