Granted Patent
Utility
US 6,551,192 · App. 10/157,637
Obstacle assembly for bikes, skateboards and rollerblades
Inventors:
Frederick Rieber, Frank Bork
Patented Case
View Patent ↗
Granted: Apr 22, 2003
Filed: May 29, 2002
Inventors
Frederick Rieber
Frank Bork
Assignee (at issue)
Hedstrom Corporation
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.