Granted Patent
Utility
US 6,217,818 · App. 08/534,126
Method of making preform and container with crystallized neck finish
Inventors:
Wayne N. Collette, Suppayan M. Krishnakumar
Patented Case
View Patent ↗
Granted: Apr 17, 2001
Filed: Sep 26, 1995
Inventors
Wayne N. Collette
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.