Granted Patent
Utility
US 5,375,571 · App. 08/225,109
Coaxially mounted engine balance shafts
Inventors:
Roy E. Diehl, Alvin Berger
Patented Case
View Patent ↗
Granted: Dec 27, 1994
Filed: Apr 8, 1994
Inventors
Roy E. Diehl
Alvin Berger
Assignee (at issue)
Ford Motor 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.