Granted Patent
Utility
US 4,252,149 · App. 06/104,288
Tool diverter
Inventor:
William W. Dollison
Patented Case
View Patent ↗
Granted: Feb 24, 1981
Filed: Dec 17, 1979
Inventor
William W. Dollison
Assignee (at issue)
Otis Engineering Corporation
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.