Granted Patent
Utility
US 4,907,686 · App. 07/224,486
Automatic high speed tie plate reorienting mechanism
Inventor:
Dennis J. Cotic
Patented Case
View Patent ↗
Granted: Mar 13, 1990
Filed: Jul 26, 1988
Inventor
Dennis J. Cotic
Assignee (at issue)
Oak Industries Inc.
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.