Granted Patent
Utility
US 4,138,581 · App. 05/654,700
3(Hydroxy or hydroxymethyl)-4(hydroxy)-.alpha.-(aminomethyl)benzyl alcohols
Inventors:
Hiroaki Minatoya, Benjamin F. Tullar, Walter D. Conway
Patented Case
View Patent ↗
Granted: Feb 6, 1979
Filed: Feb 2, 1976
Inventors
Hiroaki Minatoya
Benjamin F. Tullar
Walter D. Conway
Assignee (at issue)
Sterling Drug, 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.