Granted Patent
Utility
US 5,711,293 · App. 08/590,488
Forming tool for use with a laryngeal mask
Inventor:
Archibald Ian Jeremy Brain
Patented Case
View Patent ↗
Granted: Jan 27, 1998
Filed: Jan 24, 1996
Inventor
Archibald Ian Jeremy Brain
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.