Granted Patent
Utility
US 5,771,889 · App. 08/606,307
Laryngeal mask airways
Inventor:
Eric Pagan
Patented Case
View Patent ↗
Granted: Jun 30, 1998
Filed: Feb 23, 1996
Inventor
Eric Pagan
Assignee (at issue)
Smiths Industries PLC
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.