Granted Patent
Utility
US 4,280,613 · App. 06/084,303
Tie plate conveying and orientating system
Inventor:
John K. Stewart
Patented Case
View Patent ↗
Granted: Jul 28, 1981
Filed: Oct 12, 1979
Inventor
John K. Stewart
Assignee (at issue)
Canron Corporation
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.