Granted Patent
Utility
US 4,840,207 · App. 07/069,535
Apparatus for making wooden I-beams
Inventor:
Jerry L. Lines
Patented Case
View Patent ↗
Granted: Jun 20, 1989
Filed: Jul 1, 1987
Inventor
Jerry L. Lines
Assignee (at issue)
MiTek 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.