Granted Patent
Utility
US 4,839,509 · App. 07/201,878
Connector device for connecting IC card to reading and/or writing apparatus
Inventors:
Jun-ichi Yasuma, Tadashi Kobayashi, Masakuni Ishikawa
Patented Case
View Patent ↗
Granted: Jun 13, 1989
Filed: Jun 3, 1988
Inventors
Jun-ichi Yasuma
Tadashi Kobayashi
Masakuni Ishikawa
Assignee (at issue)
Diesel Kiki 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.