Granted Patent
Utility
US 4,554,094 · App. 06/626,508
Electrically conductive fillers
Inventors:
Fridolin Babler, Kurt Munk
Patented Case
View Patent ↗
Granted: Nov 19, 1985
Filed: Jun 29, 1984
Inventors
Fridolin Babler
Kurt Munk
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.