Granted Patent
Utility
US 4,812,147 · App. 06/796,240
Multicomponent adsorption process
Inventor:
William E. BeVier
Patented Case
View Patent ↗
Granted: Mar 14, 1989
Filed: Nov 8, 1985
Inventor
William E. BeVier
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.