Granted Patent
Utility
US 5,034,439 · App. 07/454,615
Flame-resistant polyester moulding compound
Inventors:
Franz Breitenfellner, Thomas Kainmuller
Patented Case
View Patent ↗
Granted: Jul 23, 1991
Filed: Dec 21, 1989
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.