Granted Patent
Utility
US 4,659,735 · App. 06/725,181
Benzofuranyl (thienyl) propenyl derivatives useful as rodenticides
Inventors:
Michael Klaus, Peter Loeliger, Harald Weiser
Patented Case
View Patent ↗
Granted: Apr 21, 1987
Filed: Apr 19, 1985
Inventors
Michael Klaus
Peter Loeliger
Harald Weiser
Assignee (at issue)
HOFFMANN-LA ROCHE INC.
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.