Granted Patent
Utility
US 4,935,478 · App. 07/226,009
Unsaturated imide and benzaldehyde derivative containing hot-curable composition of matter
Inventor:
Andreas Kramer
Patented Case
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Granted: Jun 19, 1990
Filed: Jul 29, 1988
Inventor
Andreas Kramer
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.