Granted Patent
Utility
US 5,250,202 · App. 07/811,380
Phenyalkyl glycidyl ether addition products
Inventors:
Dieter Reinehr, Rosemarie Topfl
Patented Case
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Granted: Oct 5, 1993
Filed: Dec 20, 1991
Inventors
Dieter Reinehr
Rosemarie Topfl
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.