Granted Patent
Utility
US 6,308,804 · App. 09/523,943
Quick connect wheelchair brake lock
Inventor:
Jack E. Roberts
Patented Case
View Patent ↗
Granted: Oct 30, 2001
Filed: Mar 13, 2000
Inventor
Jack E. Roberts
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.