Granted Patent
Utility
US 4,950,846 · App. 07/352,436
Multiple pole electric relay
Inventor:
David D. Pollard
Patented Case
View Patent ↗
Granted: Aug 21, 1990
Filed: Jun 19, 1989
Inventor
David D. Pollard
Assignee (at issue)
Westinghouse Electric Company LLC
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.