Granted Patent
Utility
US 4,401,503 · App. 06/407,523
Apparatus for this application of an adhesive web longitudinally and with U-shaped section about the edge of a sheet metal panel or the like shaped part of sheet metal
Inventor:
Helfried Hertel
Patented Case
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Granted: Aug 30, 1983
Filed: Aug 12, 1982
Inventor
Helfried Hertel
Assignee (at issue)
Ciba-Geigy
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.