Granted Patent
Utility
US 4,580,534 · App. 06/686,103
Engine barring device
Inventors:
Randall B. Blum, Raymond O. Starnes
Patented Case
View Patent ↗
Granted: Apr 8, 1986
Filed: Dec 24, 1984
Inventors
Randall B. Blum
Raymond O. Starnes
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.