Granted Patent
Utility
US 4,581,463 · App. 06/640,004
Nucleophilic substitution process combined with additional reaction steps
Inventors:
G. Patrick Stahly, Barbara C. Stahly
Patented Case
View Patent ↗
Granted: Apr 8, 1986
Filed: Aug 10, 1984
Inventors
G. Patrick Stahly
Barbara C. Stahly
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.