Granted Patent
Utility
US 4,945,504 · App. 07/040,489
Instruction input system for electronic processor
Inventors:
Masato Nakama, Norihiro Hidaka
Patented Case
View Patent ↗
Granted: Jul 31, 1990
Filed: Apr 20, 1987
Inventors
Masato Nakama
Norihiro Hidaka
Assignee (at issue)
CASIO COMPUTER 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.