Granted Patent
Utility
US 5,159,688 · App. 07/691,284
Information processor performing interrupt operation in two modes
Inventors:
Osamu Matsushima, Yukio Maehashi, Shigetatsu Katori, Masahiro Nomura, Hiroko Shinohara, Kohichi Kariya, Mitsue Abe
Patented Case
View Patent ↗
Granted: Oct 27, 1992
Filed: Apr 25, 1991
Inventors
Osamu Matsushima
Yukio Maehashi
Shigetatsu Katori
Masahiro Nomura
Hiroko Shinohara
Kohichi Kariya
Mitsue Abe
Assignee (at issue)
NEC 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.