Granted Patent
Utility
US 4,367,523 · App. 06/234,744
Rectifier bridge unit
Inventor:
Richard J. Urba
Patented Case
View Patent ↗
Granted: Jan 4, 1983
Filed: Feb 17, 1981
Inventor
Richard J. Urba
Assignee (at issue)
Electronic Devices, Inc.
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.