Granted Patent
Utility
US 6,783,491 · App. 10/173,220
Shape lockable apparatus and method for advancing an instrument through unsupported anatomy
Inventors:
Vahid Saadat, Richard C. Ewers, Eugene Chen
Patented Case
View Patent ↗
Granted: Aug 31, 2004
Filed: Jun 13, 2002
Inventors
Vahid Saadat
Richard C. Ewers
Eugene Chen
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.