Granted Patent
Utility
US 5,654,493 · App. 08/702,812
Process for preparing 4-bromophenyl alkyl ethers
Inventor:
Thomas Wessel
Patented Case
View Patent ↗
Granted: Aug 5, 1997
Filed: Aug 26, 1996
Inventor
Thomas Wessel
Assignee (at issue)
Hoechst GmbH
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.