Granted Patent
Utility
US 5,633,242 · App. 08/511,026
Pharmaceuticals for contraception/hormone substitution containing a biogenous estrogen component
Inventors:
Michael Oettel, Hermann Osterwald, Claudia Moore, Thomas Gr aser
Patented Case
View Patent ↗
Granted: May 27, 1997
Filed: Aug 3, 1995
Inventors
Michael Oettel
Hermann Osterwald
Claudia Moore
Thomas Gr aser
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.