Granted Patent
Utility
US 5,645,945 · App. 08/563,130
Multi-layer films made from copolyamides
Inventors:
Werner Nielinger, Helmut Schulte, Bernhard Schulte, Edgar Ostlinning
Patented Case
View Patent ↗
Granted: Jul 8, 1997
Filed: Nov 27, 1995
Inventors
Werner Nielinger
Helmut Schulte
Bernhard Schulte
Edgar Ostlinning
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.