Granted Patent
Utility
US 4,490,799 · App. 06/327,733
Ignition coil test apparatus
Inventors:
Joseph A. Marino, Michael J. Kling, III, Sydney J. Roth, Surender Makhija
Patented Case
View Patent ↗
Granted: Dec 25, 1984
Filed: Dec 4, 1981
Inventors
Joseph A. Marino
Michael J. Kling, III
Sydney J. Roth
Surender Makhija
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.