Granted Patent
Utility
US 4,916,178 · App. 07/263,666
Stable solutions of poly-.alpha.-hydroxyacrylic acid salts
Inventors:
Werner Amati, Jose Canela
Patented Case
View Patent ↗
Granted: Apr 10, 1990
Filed: Oct 27, 1988
Inventors
Werner Amati
Jose Canela
Assignee (at issue)
Sandoz AG
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.