Granted Patent
Utility
US 5,270,087 · App. 07/796,962
Scratch art simulated stained glass and process of making same
Inventor:
Nathan Polsky
Patented Case
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Granted: Dec 14, 1993
Filed: Nov 25, 1991
Inventor
Nathan Polsky
Assignee (at issue)
Scratch-Art Company
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.