Granted Patent
Utility
US 4,797,498 · App. 06/887,670
Flavonoxypropanolamines and esters of flavonoxypropanolamines as antiarrhythmic agents
Inventors:
William L. Albrecht, Edwin S. C. Wu
Patented Case
View Patent ↗
Granted: Jan 10, 1989
Filed: Jul 18, 1986
Inventors
William L. Albrecht
Edwin S. C. Wu
Assignee (at issue)
Pennwalt 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.