Granted Patent
Utility
US 5,264,446 · App. 07/892,439
Solid medicament formulations containing nifedipine, and processes for their preparation
Inventors:
Ahmed Hegasy, Klaus-Dieter Ramsch
Patented Case
View Patent ↗
Granted: Nov 23, 1993
Filed: Jun 1, 1992
Inventors
Ahmed Hegasy
Klaus-Dieter Ramsch
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.