Granted Patent
Utility
US 5,484,943 · App. 08/319,406
Pyrrolo[3,4-c]pyrroles
Inventors:
John S. Zambounis, Zhimin Hao, Abul Iqbal
Patented Case
View Patent ↗
Granted: Jan 16, 1996
Filed: Oct 6, 1994
Inventors
John S. Zambounis
Zhimin Hao
Abul Iqbal
Assignee (at issue)
Ciba-Geigy
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.