Granted Patent
Utility
US 6,662,022 · App. 09/551,219
Portable telephone set
Inventors:
Miwa Kanamori, Yuichi Kanai, Seiya Ota, Toshiaki Hioki, Yoshihiro Hori, Megumi Makino, Masaya Okumura, Jiro Yokoyama, Tohru Kawabata
Patented Case
View Patent ↗
Granted: Dec 9, 2003
Filed: Apr 17, 2000
Inventors
Miwa Kanamori
Yuichi Kanai
Seiya Ota
Toshiaki Hioki
Yoshihiro Hori
Megumi Makino
Masaya Okumura
Jiro Yokoyama
Tohru Kawabata
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.