Granted Patent
Utility
US 5,064,508 · App. 07/574,609
Process for the separation of 2-methylalkanals from isomers thereof
Inventors:
Jurgen Weber, Peter Lappe, Helmut Springer
Patented Case
View Patent ↗
Granted: Nov 12, 1991
Filed: Aug 28, 1990
Inventors
Jurgen Weber
Peter Lappe
Helmut Springer
Assignee (at issue)
Hoechst GmbH
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.