Granted Patent
Utility
US 4,372,857 · App. 06/240,860
Liquid adsorption process and apparatus
Inventors:
William G. Matthews, Jean-Paul Sicard, Richard A. Anderson
Patented Case
View Patent ↗
Granted: Feb 8, 1983
Filed: Mar 5, 1981
Inventors
William G. Matthews
Jean-Paul Sicard
Richard A. Anderson
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.