Granted Patent
Utility
US 4,337,014 · App. 06/211,367
Method and apparatus for erecting a portable silo and elevator
Inventor:
Robert E. Farnham
Patented Case
View Patent ↗
Granted: Jun 29, 1982
Filed: Nov 28, 1980
Inventor
Robert E. Farnham
Assignee (at issue)
Barber-Greene 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.