Granted Patent
Utility
US 4,886,932 · App. 07/179,614
Thin bed cofeed reaction system for methane conversion
Inventor:
David W. Leyshon
Patented Case
View Patent ↗
Granted: Dec 12, 1989
Filed: Apr 11, 1988
Inventor
David W. Leyshon
Assignee (at issue)
Atlantic Richfield Company
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.