Granted Patent
Utility
US 4,297,243 · App. 06/081,105
Molybdenum-exchanged crystalline aluminosilicate zeolite
Inventor:
Eric L. Moorehead
Patented Case
View Patent ↗
Granted: Oct 27, 1981
Filed: Oct 2, 1979
Inventor
Eric L. Moorehead
Assignee (at issue)
Union Oil Company of California
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.