Granted Patent
Utility
US 4,582,855 · App. 06/320,773
Aromatic and esters of hydroxypropylamines
Inventors:
Sheung T. Kam, William L. Matier
Patented Case
View Patent ↗
Granted: Apr 15, 1986
Filed: Nov 12, 1981
Inventors
Sheung T. Kam
William L. Matier
Assignee (at issue)
American Hospital Supply Corp.
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.