Granted Patent
Utility
US 4,276,305 · App. 06/115,313
Cyclopropane carboxylic acid esters and cyclopropane(thio)-carboxylic acid esters
Inventor:
Milos Suchy
Patented Case
View Patent ↗
Granted: Jun 30, 1981
Filed: Jan 25, 1980
Inventor
Milos Suchy
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.