Granted Patent
Utility
US 4,828,596 · App. 07/103,859
Use of glass enamel coating compositions as an anti-sticking agent
Inventor:
Barry P. Reinherz
Patented Case
View Patent ↗
Granted: May 9, 1989
Filed: Oct 1, 1987
Inventor
Barry P. Reinherz
Assignee (at issue)
Giba-Geigy Corporation
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.