Granted Patent
Utility
US 5,918,595 · App. 08/771,226
Method for vaporizing an anesthetic liquid and vaporizer operating according to the method
Inventors:
Sven-Gunnar Olsson, Goran Rydgren, Anders Larsson, Tarmo Niininen
Patented Case
View Patent ↗
Granted: Jul 6, 1999
Filed: Dec 20, 1996
Inventors
Sven-Gunnar Olsson
Goran Rydgren
Anders Larsson
Tarmo Niininen
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.