Granted Patent
Utility
US 4,697,139 · App. 07/011,368
Logic circuit having testability for defective via contacts
Inventor:
Laszlo V. Gal
Patented Case
View Patent ↗
Granted: Sep 29, 1987
Filed: Feb 2, 1987
Inventor
Laszlo V. Gal
Assignee (at issue)
Unisys 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.