Granted Patent
Utility
US 4,994,459 · App. 07/449,273
Aryloxypropane substituted piperazine derivatives with antiarrhythmic and antifibrillatory activity
Inventors:
John A. Butera, Jehan F. Bagli
Patented Case
View Patent ↗
Granted: Feb 19, 1991
Filed: Dec 11, 1989
Inventors
John A. Butera
Jehan F. Bagli
Assignee (at issue)
Amerimas Home Products, 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.