Granted Patent
Utility
US 4,901,952 · App. 07/220,933
Control apparatus
Inventor:
Neil J. Curtis
Patented Case
View Patent ↗
Granted: Feb 20, 1990
Filed: Jun 23, 1988
Inventor
Neil J. Curtis
Assignee (at issue)
British Aerospace Public Limited Co.
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.