Granted Patent
Utility
US 4,461,630 · App. 06/430,369
Product recovery in pressure swing adsorption process and system
Inventors:
Robert T. Cassidy, Kishore J. Doshi
Patented Case
View Patent ↗
Granted: Jul 24, 1984
Filed: Sep 30, 1982
Inventors
Robert T. Cassidy
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.