Granted Patent
Utility
US 4,441,900 · App. 06/381,846
Method of treating carbon-dioxide-containing natural gas
Inventor:
Brian R. Swallow
Patented Case
View Patent ↗
Granted: Apr 10, 1984
Filed: May 25, 1982
Inventor
Brian R. Swallow
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.