Granted Patent
Utility
US 4,254,668 · App. 06/002,625
Engine flywheel and interconnecting drive shaft
Inventors:
Orville E. Kessinger, Jr., Ivan R. Lamport
Patented Case
View Patent ↗
Granted: Mar 10, 1981
Filed: Jan 11, 1979
Inventors
Orville E. Kessinger, Jr.
Ivan R. Lamport
Assignee (at issue)
Caterpillar Tractor Co.
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.