Granted Patent
Utility
US 4,678,709 · App. 06/738,622
Electrical insulation
Inventors:
Stephen L. Tondre, Hans E. Lunk
Patented Case
View Patent ↗
Granted: Jul 7, 1987
Filed: May 28, 1985
Inventors
Stephen L. Tondre
Hans E. Lunk
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.