Granted Patent
Utility
US 5,677,273 · App. 08/464,790
Wetting agents for the pretreatment of textiles
Inventors:
Karl Schmid, Ingo Wegener, Anja Hanke, Michael Neuss, Hans-Christians Raths
Patented Case
View Patent ↗
Granted: Oct 14, 1997
Filed: Jun 22, 1995
Inventors
Karl Schmid
Ingo Wegener
Anja Hanke
Michael Neuss
Hans-Christians Raths
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.