Granted Patent
Utility
US 4,278,516 · App. 06/053,060
Method for the preparation of 2-fluoro-4-monobromomethylbiphenyl
Inventors:
Edward J. Zaiko, Paul F. Ranken
Patented Case
View Patent ↗
Granted: Jul 14, 1981
Filed: Jun 28, 1979
Inventors
Edward J. Zaiko
Paul F. Ranken
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.