Granted Patent
Utility
US 6,209,818 · App. 09/230,375
Compact rider roll wheel
Inventors:
Jurgen Treutner, G. Walter Dorfel
Patented Case
View Patent ↗
Granted: Apr 3, 2001
Filed: Jan 25, 1999
Inventors
Jurgen Treutner
G. Walter Dorfel
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.