Granted Patent
Utility
US 5,675,032 · App. 08/416,412
Process for the preparation of specific polyethylene glycol di (2-(4-chloro-2-methylphenoxy)-propionic acid ester mixtures
Inventors:
Lutz Heuer, Heinz-Joachim Rother, Volker Glock
Patented Case
View Patent ↗
Granted: Oct 7, 1997
Filed: Apr 4, 1995
Inventors
Lutz Heuer
Heinz-Joachim Rother
Volker Glock
Assignee (at issue)
Bayer Aktiengesellschaft
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.