Granted Patent
Utility
US 4,899,067 · App. 07/222,832
Programmable logic devices with spare circuits for use in replacing defective circuits
Inventors:
Hock C. So, Sau C. Wong
Patented Case
View Patent ↗
Granted: Feb 6, 1990
Filed: Jul 22, 1988
Inventors
Hock C. So
Sau C. Wong
Assignee (at issue)
Altera 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.