Granted Patent
Utility
US 6,462,906 · App. 09/852,635
Magnetic tape cartridge
Inventors:
Kiyoo Morita, Hideaki Shiga, Daisuke Takahashi, Yusuke Ishihara, Seiji Tsuyuki
Patented Case
View Patent ↗
Granted: Oct 8, 2002
Filed: May 11, 2001
Inventors
Kiyoo Morita
Hideaki Shiga
Daisuke Takahashi
Yusuke Ishihara
Seiji Tsuyuki
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.