Granted Patent
Utility
US 6,495,535 · App. 09/526,474
High potency dihydroergotamine compositions
Inventors:
John R. Plachetka, Donna Gilbert
Patented Case
View Patent ↗
Granted: Dec 17, 2002
Filed: Mar 15, 2000
Inventors
John R. Plachetka
Donna Gilbert
Assignee (at issue)
POZEN 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.