Granted Patent
Utility
US 6,630,216 · App. 09/915,698
Molded plastic article comprising a barrier film
Inventors:
Dirk Pophusen, Gerhard Opelka, Detlev Joachimi, Helmut Schulte, Karsten-Josef Idel
Patented Case
View Patent ↗
Granted: Oct 7, 2003
Filed: Jul 26, 2001
Inventors
Dirk Pophusen
Gerhard Opelka
Detlev Joachimi
Helmut Schulte
Karsten-Josef Idel
Assignee (at issue)
Bayer Aktiengesellschaft
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.