Granted Patent
Utility
US 6,490,133 · App. 09/657,688
Tape cartridge with a cell for a leader hook member and a cell for a leader
Inventors:
Masatoshi Okamura, Hiroshi Kaneda
Patented Case
View Patent ↗
Granted: Dec 3, 2002
Filed: Sep 8, 2000
Inventors
Masatoshi Okamura
Hiroshi Kaneda
Assignee (at issue)
TDK 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.