Granted Patent
Utility
US 4,981,683 · App. 07/355,617
Solid, rapidly released medicament preparations containing dihydropyridines, and processes for their preparation
Inventor:
Ahmed Hegasy
Patented Case
View Patent ↗
Granted: Jan 1, 1991
Filed: May 23, 1989
Inventor
Ahmed Hegasy
Assignee (at issue)
Bayer Aktiengesellschaft
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.