Granted Patent
Utility
US 4,237,441 · App. 05/965,343
Low resistivity PTC compositions
Inventors:
Peter V. van Konynenburg, Andrew N. Au, Chris J. Rauwendaal, Alan J. Gotcher
Patented Case
View Patent ↗
Granted: Dec 2, 1980
Filed: Dec 1, 1978
Inventors
Peter V. van Konynenburg
Andrew N. Au
Chris J. Rauwendaal
Alan J. Gotcher
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.