Granted Patent
Utility
US 4,814,482 · App. 06/854,084
Trifluoromethylation process
Inventor:
Robert I. Davidson
Patented Case
View Patent ↗
Granted: Mar 21, 1989
Filed: Apr 21, 1986
Inventor
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.