Granted Patent
Utility
US 6,374,040 · App. 09/739,322
Portable DVD player
Inventors:
Tetsuya Mizoguchi, Masayuki Sato, Hiroyuki Sakamoto
Patented Case
View Patent ↗
Granted: Apr 16, 2002
Filed: Dec 19, 2000
Inventors
Tetsuya Mizoguchi
Masayuki Sato
Hiroyuki Sakamoto
Assignee (at issue)
Kabushiki Kaisha Toshiba
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.