Granted Patent
Utility
US 4,913,848 · App. 07/256,593
Process for producing a high purity dibromoneopentyl glycol product
Inventor:
John Y. Lee
Patented Case
View Patent ↗
Granted: Apr 3, 1990
Filed: Oct 12, 1988
Inventor
John Y. Lee
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.