Granted Patent
Utility
US 5,692,495 · App. 08/626,413
Method and apparatus for the production of nitric oxide gas mixture
Inventor:
Lien-Lung Sheu
Patented Case
View Patent ↗
Granted: Dec 2, 1997
Filed: Apr 2, 1996
Inventor
Lien-Lung Sheu
Assignee (at issue)
The BOC Group Limited
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.