Granted Patent
Utility
US 4,136,071 · App. 05/687,573
Mixed block polymer adhesive
Inventor:
Ralf Korpman
Patented Case
View Patent ↗
Granted: Jan 23, 1979
Filed: May 18, 1976
Inventor
Ralf Korpman
Assignee (at issue)
Johnson & Johnson GmbH
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.