Granted Patent
Utility
US 5,402,771 · App. 07/736,410
Anterior commissure laryngoscope
Inventor:
William H. Pilling
Patented Case
View Patent ↗
Granted: Apr 4, 1995
Filed: Jul 26, 1991
Inventor
William H. Pilling
Assignee (at issue)
Pilling Co.
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.