Granted Patent
Utility
US 5,809,727 · App. 08/772,090
Web member for concrete form walls
Inventor:
Jan Hendrik Mensen
Patented Case
View Patent ↗
Granted: Sep 22, 1998
Filed: Dec 20, 1996
Inventor
Jan Hendrik Mensen
Assignee (at issue)
AAB Building System, 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.