Granted Patent
Utility
US 4,388,304 · App. 06/225,048
Angiotensin-II analogues with antagonizing effects, containing an ester group in position 8, and a process for the preparation thereof
Inventors:
Olga Nyeki, Lajos Kisfaludy, Egon Karpati, Laszlo Szporny
Patented Case
View Patent ↗
Granted: Jun 14, 1983
Filed: Jan 14, 1981
Inventors
Olga Nyeki
Lajos Kisfaludy
Egon Karpati
Laszlo Szporny
Assignee (at issue)
Richter Gedeon Vegyeszeti Gyar RT
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.