Granted Patent
Utility
US 4,429,447 · App. 06/408,152
Bearing cup installing tool
Inventor:
Marvin A. Davis
Patented Case
View Patent ↗
Granted: Feb 7, 1984
Filed: Aug 16, 1982
Inventor
Marvin A. Davis
Assignee (at issue)
Owatonna Tool Company
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.