Granted Patent
Utility
US 4,540,099 · App. 06/607,082
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Inventors:
Peter T. Swartzbaugh, Edward M. Hehl
Patented Case
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Granted: Sep 10, 1985
Filed: May 4, 1984
Inventors
Peter T. Swartzbaugh
Edward M. Hehl
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.