Granted Patent
Utility
US 6,492,058 · App. 09/512,334
Battery pack
Inventors:
Atsushi Watanabe, Yasushi Inoue, Ryosuke Kubo, Keiji Ishihama, Yasuhiro Yamagami, Takuya Matsuda, Mikitaka Tamai
Patented Case
View Patent ↗
Granted: Dec 10, 2002
Filed: Feb 24, 2000
Inventors
Atsushi Watanabe
Yasushi Inoue
Ryosuke Kubo
Keiji Ishihama
Yasuhiro Yamagami
Takuya Matsuda
Mikitaka Tamai
Assignee (at issue)
SANYO ELECTRIC CO., LTD.
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.