Granted Patent
Utility
US 4,638,559 · App. 06/666,526
Methods of and apparatus for making slotted beam contact elements
Inventor:
Charles McGonigal
Patented Case
View Patent ↗
Granted: Jan 27, 1987
Filed: Oct 30, 1984
Inventor
Charles McGonigal
Assignee (at issue)
AT&T Technologies Incorporated
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.