Granted Patent
Utility
US 5,666,540 · App. 08/600,322
Information processing system
Inventors:
Mikio Hagiwara, Susumu Shimotono
Patented Case
View Patent ↗
Granted: Sep 9, 1997
Filed: Feb 13, 1996
Inventors
Mikio Hagiwara
Susumu Shimotono
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.