Granted Patent
Utility
US 6,129,136 · App. 09/154,205
Strip steering
Inventors:
Michael Tibbs, John Albert Ziegelaar
Patented Case
View Patent ↗
Granted: Oct 10, 2000
Filed: Sep 16, 1998
Inventors
Michael Tibbs
John Albert Ziegelaar
Assignees (at issue)
ISHIKAWAJIMA-HARIMA HEAVY INDUSTRIES CO., LTD.
BHP Steel (JLA) Pty. Ltd.
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.