Granted Patent
Utility
US 4,634,913 · App. 06/703,653
Application of lithium tetraborate to electronic devices
Inventors:
Roger W. Whatmore, Iain McEwing Young
Patented Case
View Patent ↗
Granted: Jan 6, 1987
Filed: Feb 21, 1985
Inventors
Roger W. Whatmore
Iain McEwing Young
Assignee (at issue)
Plessey Overseas Limited
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.