Granted Patent
Utility
US 6,012,452 · App. 09/168,115
Laryngeal mask assemblies
Inventor:
Eric Pagan
Patented Case
View Patent ↗
Granted: Jan 11, 2000
Filed: Oct 8, 1998
Inventor
Eric Pagan
Assignee (at issue)
Smiths Industries Public Limited Company
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.