Granted Patent
Utility
US 5,255,221 · App. 07/679,370
Fully configurable versatile field programmable function element
Inventor:
Dwight D. Hill
Patented Case
View Patent ↗
Granted: Oct 19, 1993
Filed: Apr 2, 1991
Inventor
Dwight D. Hill
Assignee (at issue)
AT&T Bell Laboratories
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.