Granted Patent
Utility
US 5,393,307 · App. 08/101,207
Reactive dyestuff mixture
Inventors:
Max Schwarz, Joachim Grutze, Dietrich Hildebrand, Joachim Wolff, Frank-Michael Stohr
Patented Case
View Patent ↗
Granted: Feb 28, 1995
Filed: Aug 3, 1993
Inventors
Max Schwarz
Joachim Grutze
Dietrich Hildebrand
Joachim Wolff
Frank-Michael Stohr
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.