Granted Patent
Utility
US 4,770,181 · App. 06/899,595
Gas stream blower for non-contact type tonometer
Inventor:
Hideo Tomoda
Patented Case
View Patent ↗
Granted: Sep 13, 1988
Filed: Aug 25, 1986
Inventor
Hideo Tomoda
Assignee (at issue)
Tokyo Kogaku Kikai Kabushiki Kaisha
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.