Granted Patent
Utility
US 4,547,440 · App. 06/601,594
Electrochemical cell
Inventors:
Alan Hooper, John M. North
Patented Case
View Patent ↗
Granted: Oct 15, 1985
Filed: Apr 18, 1984
Inventors
Alan Hooper
John M. North
Assignee (at issue)
United Kingdom Atomic Energy Authority
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.