Granted Patent
Utility
US 5,267,041 · App. 07/731,450
Ghost cancelling circuit
Inventor:
Mitsuhiro Matsunaga
Patented Case
View Patent ↗
Granted: Nov 30, 1993
Filed: Jul 17, 1991
Inventor
Mitsuhiro Matsunaga
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.