Granted Patent
Utility
US 5,728,347 · App. 08/415,149
Method of forming multi-layer preform and container with low crystallizing interior layer
Inventors:
Wayne N. Collette, Steven L. Schmidt, Suppayan M. Krishnakumar
Patented Case
View Patent ↗
Granted: Mar 17, 1998
Filed: Mar 31, 1995
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.