Granted Patent
Utility
US 4,398,926 · App. 06/371,285
Enhanced hydrogen recovery from low purity gas streams
Inventor:
Kishore J. Doshi
Patented Case
View Patent ↗
Granted: Aug 16, 1983
Filed: Apr 23, 1982
Inventor
Kishore J. Doshi
Assignee (at issue)
Union Carbide 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.