Granted Patent
Utility
US 4,977,124 · App. 07/374,043
Catalyst composition for coupling process
Inventor:
R. Scott Smith
Patented Case
View Patent ↗
Granted: Dec 11, 1990
Filed: Jun 30, 1989
Inventor
R. Scott Smith
Assignee (at issue)
Ethyl Corporation
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.