Granted Patent
Utility
US 4,623,378 · App. 06/637,087
Gametocidal pyridazinylcarboxylic acid derivatives
Inventors:
Dieter Durrr, Hans Tobler
Patented Case
View Patent ↗
Granted: Nov 18, 1986
Filed: Aug 2, 1984
Inventors
Dieter Durrr
Hans Tobler
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.