Granted Patent
Utility
US 4,775,778 · App. 06/734,414
PTC compositions and devices comprising them
Inventors:
Peter H. van Konynenburg, Bernard J. Lyons
Patented Case
View Patent ↗
Granted: Oct 4, 1988
Filed: May 14, 1985
Inventors
Peter H. van Konynenburg
Bernard J. Lyons
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.