Granted Patent
Utility
US 5,431,920 · App. 08/125,372
Enteric coated oral compositions containing bisphosphonic acid antihypercalcemic agents
Inventor:
Simon R. Bechard
Patented Case
View Patent ↗
Granted: Jul 11, 1995
Filed: Sep 21, 1993
Inventor
Simon R. Bechard
Assignee (at issue)
Merck Frosst Canada Ltd.
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.