Granted Patent
Utility
US 6,026,208 · App. 09/070,254
Light waveguides having at least two coatings composed of plastic material
Inventors:
Horst Will, Klaus-Dieter Hutschgau, Arnold Pfeuffer, Helmut Nowsch, Wolfgang Dzyck, Dieter Kundis
Patented Case
View Patent ↗
Granted: Feb 15, 2000
Filed: Apr 30, 1998
Inventors
Horst Will
Klaus-Dieter Hutschgau
Arnold Pfeuffer
Helmut Nowsch
Wolfgang Dzyck
Dieter Kundis
Assignee (at issue)
Siemens 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.