Granted Patent
Utility
US 4,889,005 · App. 07/172,276
Remote control mechanisms
Inventor:
David J. Crack
Patented Case
View Patent ↗
Granted: Dec 26, 1989
Filed: Mar 23, 1988
Inventor
David J. Crack
Assignee (at issue)
Morse Controls 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.