Granted Patent
Utility
US 4,943,801 · App. 07/161,690
Graphics display controller equipped with boundary searching circuit
Inventor:
Tetsuji Oguchi
Patented Case
View Patent ↗
Granted: Jul 24, 1990
Filed: Feb 29, 1988
Inventor
Tetsuji Oguchi
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.