Granted Patent
Utility
US 6,581,525 · App. 09/852,434
Method and apparatus for transporting and steering a load
Inventor:
Harlan B. Smith
Patented Case
View Patent ↗
Granted: Jun 24, 2003
Filed: May 9, 2001
Inventor
Harlan B. Smith
Assignee (at issue)
Columbia Trailer Co., 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.