Granted Patent
Utility
US 5,539,666 · App. 08/336,153
Data communications method and system coupling device
Inventors:
Yoshinao Kobayashi, Hironao Sone, Hiroshi Ishikawa
Patented Case
View Patent ↗
Granted: Jul 23, 1996
Filed: Nov 8, 1994
Inventors
Yoshinao Kobayashi
Hironao Sone
Hiroshi Ishikawa
Assignee (at issue)
International Business Machines 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.