Granted Patent
Utility
US 4,527,704 · App. 06/574,107
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Inventor:
Peter T. Swartzbaugh
Patented Case
View Patent ↗
Granted: Jul 9, 1985
Filed: Jan 26, 1984
Inventor
Peter T. Swartzbaugh
Assignee (at issue)
Owens-Illinois 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.