Granted Patent
Utility
US 5,208,041 · App. 07/707,114
Essentially pure human parathyroid hormone
Inventor:
Dennis R. Sindrey
Patented Case
View Patent ↗
Granted: May 4, 1993
Filed: May 23, 1991
Inventor
Dennis R. Sindrey
Assignees (at issue)
Allelix BioPharmaceuticals, Inc.
Glaxo Canada 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.