Granted Patent
Utility
US 4,456,723 · App. 06/435,831
Thermoplastic moulding composition and the use thereof
Inventors:
Franz Breitenfellner, Thomas Kainmuller
Patented Case
View Patent ↗
Granted: Jun 26, 1984
Filed: Oct 21, 1982
Inventors
Franz Breitenfellner
Thomas Kainmuller
Assignee (at issue)
Ciba-Geigy
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.