Granted Patent
Utility
US 4,813,557 · App. 06/757,125
Pasteurizable container closure
Inventors:
Gene A. Herron, Gerhard E. B. Nickel, Alfred C. Alberghini
Patented Case
View Patent ↗
Granted: Mar 21, 1989
Filed: Jul 19, 1985
Inventors
Gene A. Herron
Gerhard E. B. Nickel
Alfred C. Alberghini
Assignee (at issue)
Sewell Plastics, 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.