Granted Patent
Utility
US 5,597,902 · App. 08/054,118
Bi -and polyfunctional reactive dyestuffs, their prepartion and their use
Inventors:
Konrad Bootz, Manfred Hoppe, Eckhard Bock, Wolfram Reddig, Thomas Eizenh ofer, Wolfgang Harms, Karl-Joseph Herd
Patented Case
View Patent ↗
Granted: Jan 28, 1997
Filed: Apr 27, 1993
Inventors
Konrad Bootz
Manfred Hoppe
Eckhard Bock
Wolfram Reddig
Thomas Eizenh ofer
Wolfgang Harms
Karl-Joseph 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.