Granted Patent
Utility
US 4,570,338 · App. 06/419,367
Methods of forming a screw terminal
Inventor:
Alexander M. Ignatowicz
Patented Case
View Patent ↗
Granted: Feb 18, 1986
Filed: Sep 20, 1982
Inventor
Alexander M. Ignatowicz
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.