Granted Patent
Utility
US 4,889,247 · App. 07/245,374
Plastic container, preform for and method of making same
Inventors:
Wayne N. Collette, Suppayan M. Krishnakumar
Patented Case
View Patent ↗
Granted: Dec 26, 1989
Filed: Sep 16, 1988
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.