Granted Patent
Utility
US 4,089,896 · App. 05/315,460
8,12-Diisoprostanoic acid derivatives
Inventors:
Carmelo Gandolfi, Gianfederico Doria, Pietro Gaio
Patented Case
View Patent ↗
Granted: May 16, 1978
Filed: Dec 15, 1972
Inventors
Carmelo Gandolfi
Gianfederico Doria
Pietro Gaio
Assignee (at issue)
Carlo Erba - S.p.A.
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.