Granted Patent
Utility
US 4,983,196 · App. 07/270,397
Method of molding enamel coated glass sheet without adhesion to die
Inventor:
David M. Stotka
Patented Case
View Patent ↗
Granted: Jan 8, 1991
Filed: Nov 9, 1988
Inventor
David M. Stotka
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.