Granted Patent
Utility
US 4,554,191 · App. 06/701,061
Ethylene-containing polymer foam/adhesive system
Inventor:
Ralf Korpman
Patented Case
View Patent ↗
Granted: Nov 19, 1985
Filed: Feb 13, 1985
Inventor
Ralf Korpman
Assignee (at issue)
Personal Products Company
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.