Granted Patent
Utility
US 4,481,387 · App. 06/537,706
Voltage isolater switch with pivoted contact assemblies
Inventor:
Matthew L. Worrix
Patented Case
View Patent ↗
Granted: Nov 6, 1984
Filed: Sep 30, 1983
Inventor
Matthew L. Worrix
Assignee (at issue)
Siemens-Allis
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.