Granted Patent
Utility
US 5,342,927 · App. 07/917,548
Reactive dyestuffs for the dyeing and printing of hydroxyl-or amino-containing materials
Inventors:
Wolfram Reddig, Karl-Josef Herd
Patented Case
View Patent ↗
Granted: Aug 30, 1994
Filed: Jul 21, 1992
Inventors
Wolfram Reddig
Karl-Josef Herd
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.