Granted Patent
Utility
US 5,635,475 · App. 08/442,645
Site-directed mutagenesis modified glycoprotein hormones and methods of use
Inventors:
Scott C. Chappel, Edward G. Bernstine
Patented Case
View Patent ↗
Granted: Jun 3, 1997
Filed: May 16, 1995
Inventors
Scott C. Chappel
Edward G. Bernstine
Assignee (at issue)
APPLIED RESEARCH SYSTEMS ARS HOLDING N.V.
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.