Granted Patent
Utility
US 5,008,261 · App. 07/423,070
Agents for repelling insects and mites
Inventors:
Bernd-Wieland Kruger, Klaus Sasse, Franz-Peter Hoever, Gunther Nentwig, Wolfgang Behrenz
Patented Case
View Patent ↗
Granted: Apr 16, 1991
Filed: Oct 18, 1989
Inventors
Bernd-Wieland Kruger
Klaus Sasse
Franz-Peter Hoever
Gunther Nentwig
Wolfgang Behrenz
Assignee (at issue)
Bayer Aktiengesellschaft
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.