Granted Patent
Utility
US 4,981,641 · App. 07/284,675
Inhibition of nuclear-reactor coolant-circuit contamination
Inventor:
Peter Campion
Patented Case
View Patent ↗
Granted: Jan 1, 1991
Filed: Dec 15, 1988
Inventor
Peter Campion
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.