Granted Patent
Utility
US 5,976,653 · App. 08/835,444
Multilayer preform and container with polyethylene naphthalate (PEN), and method of forming same
Inventors:
Wayne N. Collette, Steven L. Schmidt, Suppayan M. Krishnakumar
Patented Case
View Patent ↗
Granted: Nov 2, 1999
Filed: Apr 8, 1997
Inventors
Wayne N. Collette
Steven L. Schmidt
Suppayan M. Krishnakumar
Assignee (at issue)
Continental PET Technologies, Inc.
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.