Granted Patent
Utility
US 4,289,544 · App. 06/083,848
Inhibition of fretting corrosion of metals
Inventor:
Geoffrey Dearnaley
Patented Case
View Patent ↗
Granted: Sep 15, 1981
Filed: Oct 11, 1979
Inventor
Geoffrey Dearnaley
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.