Granted Patent
Utility
US 4,330,057 · App. 05/813,986
Platform conveyors
Inventor:
Keith Binns
Patented Case
View Patent ↗
Granted: May 18, 1982
Filed: Jul 8, 1977
Inventor
Keith Binns
Assignee (at issue)
Dunlop GmbH
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.