Granted Patent
Utility
US 4,849,530 · App. 07/203,390
Process for the preparation of crystalline salts or aryloxy-propanolamines
Inventors:
Gerhard Zol, Gerhard Pfarrhofer
Patented Case
View Patent ↗
Granted: Jul 18, 1989
Filed: Jun 6, 1988
Inventors
Gerhard Zol
Gerhard Pfarrhofer
Assignee (at issue)
Rorer Pharmaceutical 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.