Granted Patent
Utility
US 6,553,797 · App. 10/062,432
Skid steer lock
Inventor:
Bryan Witchey
Patented Case
View Patent ↗
Granted: Apr 29, 2003
Filed: Feb 5, 2002
Inventor
Bryan Witchey
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.