Granted Patent
Utility
US 4,879,382 · App. 07/223,847
Pyrido(3,4-f)pyrrolo(1,2-b)(1,2,5)triazepines
Inventors:
Richard C. Effland, Larry Davis, Kevin J. Kapples, Gordon E. Olsen
Patented Case
View Patent ↗
Granted: Nov 7, 1989
Filed: Jul 25, 1988
Inventors
Richard C. Effland
Larry Davis
Kevin J. Kapples
Gordon E. Olsen
Assignee (at issue)
Hoechst Roussel Pharmaceuticals
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.