Granted Patent
Utility
US 4,701,568 · App. 06/880,598
Process for preparing tetrabromobisphenol-A
Inventors:
Bonnie G. McKinnie, Olan Wayne Mitchell
Patented Case
View Patent ↗
Granted: Oct 20, 1987
Filed: Jun 30, 1986
Inventors
Bonnie G. McKinnie
Olan Wayne Mitchell
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.