Granted Patent
Utility
US 4,530,195 · App. 06/327,579
Spacer frame for an insulating glass panel and method of making the same
Inventor:
Edmund A. Leopold
Patented Case
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Granted: Jul 23, 1985
Filed: Dec 4, 1981
Inventor
Edmund A. Leopold
Assignee (at issue)
Glass Equipment Development, 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.