Granted Patent
Utility
US 5,387,720 · App. 08/151,390
Process for the production of acrolein
Inventors:
Armin Neher, Thomas Haas, Dietrich Arntz, Herbert Klenk, Walter Girke
Patented Case
View Patent ↗
Granted: Feb 7, 1995
Filed: Nov 12, 1993
Inventors
Armin Neher
Thomas Haas
Dietrich Arntz
Herbert Klenk
Walter Girke
Assignee (at issue)
Degussa AG
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.