Granted Patent
Utility
US 4,455,283 · App. 06/381,120
Molybdenum epoxidation catalyst recovery
Inventor:
Norman H. Sweed
Patented Case
View Patent ↗
Granted: Jun 19, 1984
Filed: May 24, 1982
Inventor
Norman H. Sweed
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.