Granted Patent
Utility
US 4,585,752 · App. 06/640,874
Catalyst composition for ultra high temperature operation
Inventor:
Michael V. Ernest
Patented Case
View Patent ↗
Granted: Apr 29, 1986
Filed: Aug 15, 1984
Inventor
Michael V. Ernest
Assignee (at issue)
W. R. Grace & Co.
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.