Granted Patent
Utility
US 3,944,479 · App. 05/430,440
Anode base structure
Inventors:
Walter W. Ruthel, Leo G. Evans
Patented Case
View Patent ↗
Granted: Mar 16, 1976
Filed: Jan 3, 1974
Inventors
Walter W. Ruthel
Leo G. Evans
Assignee (at issue)
Hooker Chemicals & Plastics 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.