Granted Patent
Utility
US 4,896,296 · App. 07/288,945
Programmable logic device configurable input/output cell
Inventors:
John E. Turner, David L. Rutledge, Roy D. Darling
Patented Case
View Patent ↗
Granted: Jan 23, 1990
Filed: Dec 23, 1988
Inventors
John E. Turner
David L. Rutledge
Roy D. Darling
Assignee (at issue)
Lattice Semiconductor 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.