Granted Patent
Utility
US 6,472,098 · App. 09/450,343
Battery device for loading on a mobile system
Inventors:
Hirokazu Sawada, Ryoichi Yamane, Hideya Takahashi, Yoshikazu Kanaishi
Patented Case
View Patent ↗
Granted: Oct 29, 2002
Filed: Nov 29, 1999
Inventors
Hirokazu Sawada
Ryoichi Yamane
Hideya Takahashi
Yoshikazu Kanaishi
Assignee (at issue)
SONY GROUP 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.