Granted Patent
Utility
US 5,622,941 · App. 08/188,942
Oral 1 .alpha.-hydroxyprevitamin D
Inventors:
Joyce C. Knutson, Charles W. Bishop, Charles R. Valliere
Patented Case
View Patent ↗
Granted: Apr 22, 1997
Filed: Jan 26, 1994
Inventors
Joyce C. Knutson
Charles W. Bishop
Charles R. Valliere
Assignee (at issue)
Lunar Corporation
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.