Granted Patent
Utility
US 6,738,221 · App. 09/424,178
Magnetic recording unit with lid
Inventors:
Katsutoshi Mukaijima, Maki Wakita, Shoji Takahashi
Patented Case
View Patent ↗
Granted: May 18, 2004
Filed: Feb 17, 2000
Inventors
Katsutoshi Mukaijima
Maki Wakita
Shoji Takahashi
Assignee (at issue)
IO-Mega Holding 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.