Granted Patent
Utility
US 4,607,028 · App. 06/639,033
Novel carboxylic acid esters
Inventor:
Julius Schmidlin
Patented Case
View Patent ↗
Granted: Aug 19, 1986
Filed: Aug 9, 1984
Inventor
Julius Schmidlin
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.