Granted Patent
Utility
US 6,152,133 · App. 09/343,178
Anaesthetic delivery system
Inventors:
Georgios Psaros, Pär Emtell
Patented Case
View Patent ↗
Granted: Nov 28, 2000
Filed: Jun 30, 1999
Inventors
Georgios Psaros
Pär Emtell
Assignee (at issue)
Siemens Elema AB
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.