Granted Patent
Utility
US 4,285,052 · App. 06/060,710
Roll-along switch
Inventor:
John Thomas Bobbitt, III
Patented Case
View Patent ↗
Granted: Aug 18, 1981
Filed: Jul 26, 1979
Inventor
John Thomas Bobbitt, III
Assignee (at issue)
Litton Resources Systems, Inc.
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.