Granted Patent
Utility
US 5,344,635 · App. 08/011,930
Filler for heat-conductive plastics materials
Inventors:
Patrice Bujard, Ileana Cojanu
Patented Case
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Granted: Sep 6, 1994
Filed: Feb 1, 1993
Inventors
Patrice Bujard
Ileana Cojanu
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.