Granted Patent
Utility
US 4,432,848 · App. 06/322,626
Radiation cured, high temperature pressure-sensitive adhesive
Inventor:
Ralf Korpman
Patented Case
View Patent ↗
Granted: Feb 21, 1984
Filed: Nov 19, 1981
Inventor
Ralf Korpman
Assignee (at issue)
Permacel
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.