Granted Patent
Utility
US 5,068,432 · App. 07/649,160
Process for producing optically pure 2-phenoxyphenylalkylamines
Inventor:
Herbert C. Brown
Patented Case
View Patent ↗
Granted: Nov 26, 1991
Filed: Feb 1, 1991
Inventor
Herbert C. Brown
Assignee (at issue)
Aldrich Chemical Company, Inc.
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.