Granted Patent
Utility
US 4,941,306 · App. 07/254,837
Apparatus and method for sealing a lid onto a container
Inventors:
George D. Pfaffmann, Norbert R. Balzer, Charles S. Kubis, John Walter, John P. Currie, Graham R. Adams
Patented Case
View Patent ↗
Granted: Jul 17, 1990
Filed: Oct 7, 1988
Inventors
George D. Pfaffmann
Norbert R. Balzer
Charles S. Kubis
John Walter
John P. Currie
Graham R. Adams
Assignee (at issue)
Continental Can Company, 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.