Granted Patent
Utility
US 4,935,156 · App. 06/423,589
Conductive polymer compositions
Inventors:
Peter H. van Konynenburg, Andrew N. Au
Patented Case
View Patent ↗
Granted: Jun 19, 1990
Filed: Sep 27, 1982
Inventors
Peter H. van Konynenburg
Andrew N. Au
Assignee (at issue)
Raychem Limited
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.