Granted Patent
Utility
US 4,486,424 · App. 06/432,479
Triorganotin hydantoin compounds, and the use thereof for combating insects and acarids
Inventors:
Wolfgang Wehner, Peter Ackermann
Patented Case
View Patent ↗
Granted: Dec 4, 1984
Filed: Oct 4, 1982
Inventors
Wolfgang Wehner
Peter Ackermann
Assignee (at issue)
Ciga-Geigy Corporation
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.