Granted Patent
Utility
US 4,336,270 · App. 06/082,188
O-benzylphenols
Inventor:
Rene Muntwyler
Patented Case
View Patent ↗
Granted: Jun 22, 1982
Filed: Oct 5, 1979
Inventor
Rene Muntwyler
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.