Granted Patent
Utility
US 6,736,778 · App. 09/811,709
Replaceable prism for applanation tonometer
Inventors:
Francis Falck, Robert W. Falck
Patented Case
View Patent ↗
Granted: May 18, 2004
Filed: Mar 19, 2001
Inventors
Francis Falck
Robert W. Falck
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.