Granted Patent
Utility
US 4,955,131 · App. 07/358,316
Method of building a variety of complex high performance IC devices
Inventor:
Louis E. Chall, Jr.
Patented Case
View Patent ↗
Granted: Sep 11, 1990
Filed: May 30, 1989
Inventor
Louis E. Chall, Jr.
Assignee (at issue)
Ford Aerospace 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.