Granted Patent
Utility
US 4,285,795 · App. 05/569,521
Electrolysis apparatus
Inventor:
Edward H. Cook, Jr.
Patented Case
View Patent ↗
Granted: Aug 25, 1981
Filed: Apr 18, 1975
Inventor
Edward H. Cook, Jr.
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.