Granted Patent
Utility
US 4,367,998 · App. 06/184,304
Manipulators
Inventor:
Roy Causer
Patented Case
View Patent ↗
Granted: Jan 11, 1983
Filed: Sep 5, 1980
Inventor
Roy Causer
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.