Granted Patent
Utility
US 5,173,513 · App. 07/668,905
Methanol synthesis
Inventor:
Alwyn Pinto
Patented Case
View Patent ↗
Granted: Dec 22, 1992
Filed: Mar 13, 1991
Inventor
Alwyn Pinto
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.