Granted Patent
Utility
US 6,648,259 · App. 09/762,563
Magnetic tape cartridge
Inventors:
Hideaki Shiga, Yusuke Ishihara, Kiyoo Morita, Daisuke Takahashi, Seiji Tsuyuki, Jeffrey S. McAllister, Thomas R. Albrecht, Robert Ralph Heinze
Patented Case
View Patent ↗
Granted: Nov 18, 2003
Filed: Feb 9, 2001
Inventors
Hideaki Shiga
Yusuke Ishihara
Kiyoo Morita
Daisuke Takahashi
Seiji Tsuyuki
Jeffrey S. McAllister
Thomas R. Albrecht
Robert Ralph Heinze
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.