Granted Patent
Utility
US 4,336,045 · App. 06/278,725
Acetylene removal in ethylene and hydrogen separation and recovery process
Inventors:
Theodore F. Fisher, John B. Saunders
Patented Case
View Patent ↗
Granted: Jun 22, 1982
Filed: Jun 29, 1981
Inventors
Theodore F. Fisher
John B. Saunders
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.