Granted Patent
Utility
US 4,174,963 · App. 05/929,605
Recovery of titanium metal values
Inventor:
William K. Tolley
Patented Case
View Patent ↗
Granted: Nov 20, 1979
Filed: Jul 31, 1978
Inventor
William K. Tolley
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.