Granted Patent
Utility
US 5,409,247 · App. 08/107,195
Wheelchair frame
Inventors:
A. Scott Robertson, Richard Geiger
Patented Case
View Patent ↗
Granted: Apr 25, 1995
Filed: Aug 17, 1993
Inventors
A. Scott Robertson
Richard Geiger
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.