Granted Patent
Utility
US 4,644,088 · App. 06/273,578
Acetylene removal process
Inventor:
Cecil G. McFarland
Patented Case
View Patent ↗
Granted: Feb 17, 1987
Filed: Jun 15, 1981
Inventor
Cecil G. McFarland
Assignee (at issue)
Petro-Tex Chemical 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.