Granted Patent
Utility
US 4,536,358 · App. 06/510,478
Process for the production of high surface area catalyst supports
Inventors:
Lawrence B. Welsh, Richard W. Leyerle
Patented Case
View Patent ↗
Granted: Aug 20, 1985
Filed: Jul 1, 1983
Inventors
Lawrence B. Welsh
Richard W. Leyerle
Assignee (at issue)
UOP LLC
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.