Granted Patent
Utility
US 5,863,937 · App. 08/624,559
Pharmaceutical compositions
Inventors:
Ryszard Andruszkiewicz, Henryk Chmara, Teresa Zieniawa, Edward Borowski
Patented Case
View Patent ↗
Granted: Jan 26, 1999
Filed: Apr 8, 1996
Inventors
Ryszard Andruszkiewicz
Henryk Chmara
Teresa Zieniawa
Edward Borowski
Assignee (at issue)
BTG INTERNATIONAL 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.