Granted Patent
Utility
US 4,967,534 · App. 06/764,180
Wood I-beams and methods of making same
Inventor:
Jerry L. Lines
Patented Case
View Patent ↗
Granted: Nov 6, 1990
Filed: Aug 9, 1985
Inventor
Jerry L. Lines
Assignee (at issue)
MITEK HOLDINGS, 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.