Granted Patent
Utility
US 4,328,297 · App. 06/248,078
Electrode
Inventor:
John M. Bilhorn
Patented Case
View Patent ↗
Granted: May 4, 1982
Filed: Mar 27, 1981
Inventor
John M. Bilhorn
Assignee (at issue)
Yardney Electric Corporation
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.