Granted Patent
Utility
US 4,648,782 · App. 06/498,878
Underwater manipulator system
Inventor:
Brett W. Kraft
Patented Case
View Patent ↗
Granted: Mar 10, 1987
Filed: May 27, 1983
Inventor
Brett W. Kraft
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.