Granted Patent
Utility
US 5,340,552 · App. 07/943,355
Reactive matrix for removing impurities from hydride and inert gases and process
Inventor:
James T. Snow
Patented Case
View Patent ↗
Granted: Aug 23, 1994
Filed: Sep 10, 1992
Inventor
James T. Snow
Assignee (at issue)
Millipore Corporation
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.