Granted Patent
Utility
US 4,343,723 · App. 06/267,238
Catalytic composite from partially crystallized clay
Inventors:
Edward S. Rogers, Hosheng Tu
Patented Case
View Patent ↗
Granted: Aug 10, 1982
Filed: May 26, 1981
Inventors
Edward S. Rogers
Hosheng Tu
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.