Granted Patent
Utility
US 4,019,880 · App. 05/713,034
Adsorption of carbon monoxide using silver zeolites
Inventors:
Jule A. Rabo, James N. Francis, Charles Leslie Angell
Patented Case
View Patent ↗
Granted: Apr 26, 1977
Filed: Aug 10, 1976
Inventors
Jule A. Rabo
James N. Francis
Charles Leslie Angell
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.