Granted Patent
Utility
US 5,017,155 · App. 07/452,524
Terminal boards and frame therefor
Inventor:
Clarence E. Doyle
Patented Case
View Patent ↗
Granted: May 21, 1991
Filed: Dec 18, 1989
Inventor
Clarence E. Doyle
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.