Granted Patent
Utility
US 5,471,643 · App. 07/647,498
Radio telecommunication apparatus
Inventor:
Kuniyoshi Marui
Patented Case
View Patent ↗
Granted: Nov 28, 1995
Filed: Jan 29, 1991
Inventor
Kuniyoshi Marui
Assignee (at issue)
Kabushiki Kaisha Toshiba
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.