Granted Patent
Utility
US 4,291,058 · App. 06/074,214
Naphthalenecarboxylic acid esters
Inventor:
Milos Suchy
Patented Case
View Patent ↗
Granted: Sep 22, 1981
Filed: Sep 10, 1979
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.