Granted Patent
Utility
US 4,322,432 · App. 06/214,296
Cyclopropanecarboxylic acid alkynyl esters, processes for producing them, and their use as pesticides
Inventors:
Achim Roloff, Saleem Farooq
Patented Case
View Patent ↗
Granted: Mar 30, 1982
Filed: Dec 8, 1980
Inventors
Achim Roloff
Saleem Farooq
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.