Granted Patent
Utility
US 4,230,254 · App. 05/966,841
Method of making a modular truck body
Inventor:
Bernard E. Proeschl
Patented Case
View Patent ↗
Granted: Oct 28, 1980
Filed: Dec 6, 1978
Inventor
Bernard E. Proeschl
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.