Granted Patent
Utility
US 4,808,748 · App. 06/808,304
Trifluoromethylation process
Inventors:
Ronny W. Lin, Robert I. Davidson
Patented Case
View Patent ↗
Granted: Feb 28, 1989
Filed: Dec 12, 1985
Inventors
Ronny W. Lin
Robert I. Davidson
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.