Granted Patent
Utility
US 4,925,842 · App. 07/178,808
Microbicides
Inventors:
Reinhard Janicke, Robert Nyfeler
Patented Case
View Patent ↗
Granted: May 15, 1990
Filed: Mar 28, 1988
Inventors
Reinhard Janicke
Robert Nyfeler
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.