Granted Patent
Utility
US 4,540,552 · App. 06/613,456
Process for the removal of acid gases from a gas mixture
Inventors:
Bernard C. Ream, Cyril Tellis
Patented Case
View Patent ↗
Granted: Sep 10, 1985
Filed: May 24, 1984
Inventors
Bernard C. Ream
Cyril Tellis
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.