Granted Patent
Utility
US 5,403,385 · App. 08/193,259
Serial flow pressure swing adsorption process for gas separation
Inventor:
Chuen Y. Pan
Patented Case
View Patent ↗
Granted: Apr 4, 1995
Filed: Feb 8, 1994
Inventor
Chuen Y. Pan
Assignee (at issue)
Alberta Research Council Inc.
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.