Granted Patent
Utility
US 4,423,378 · App. 06/327,586
Automotive battery test apparatus
Inventors:
Joseph A. Marino, Sydney J. Roth
Patented Case
View Patent ↗
Granted: Dec 27, 1983
Filed: Dec 4, 1981
Inventors
Joseph A. Marino
Sydney J. Roth
Assignee (at issue)
Bear Automotive Service Equipment 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.