Granted Patent
Utility
US 5,379,239 · App. 07/799,834
Waveform display device
Inventor:
Rintaro Nakatani
Patented Case
View Patent ↗
Granted: Jan 3, 1995
Filed: Nov 27, 1991
Inventor
Rintaro Nakatani
Assignee (at issue)
SEIKO INSTRUMENTS INC.
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.