Granted Patent
Utility
US 5,982,887 · App. 08/765,861
Encrypted program executing apparatus
Inventor:
Takayuki Hirotani
Patented Case
View Patent ↗
Granted: Nov 9, 1999
Filed: Dec 26, 1996
Inventor
Takayuki Hirotani
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.