Granted Patent
Utility
US 4,267,101 · App. 06/117,444
Process for obtaining human relaxin from fetal membranes
Inventor:
Mario Bigazzi
Patented Case
View Patent ↗
Granted: May 12, 1981
Filed: Feb 1, 1980
Inventor
Mario Bigazzi
Assignee (at issue)
Serono Laboratories, 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.