Granted Patent
Utility
US 4,349,567 · App. 06/174,984
Dihalovinylcyclopropanecarboxylic acid esters and their use in pest control
Inventors:
Peter Ackermann, Jozef Drabek, Saleem Farooq, Laurenz Gsell, Odd Kristiansen, Rudolf Wehrli
Patented Case
View Patent ↗
Granted: Sep 14, 1982
Filed: Aug 4, 1980
Inventors
Peter Ackermann
Jozef Drabek
Saleem Farooq
Laurenz Gsell
Odd Kristiansen
Rudolf Wehrli
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.